$1610 L$

$805L$

$402 L$

$201 L$

$100L$

$9.8m{s}^{-2 }$

$32m{s}^{-2 }$

$9.41m{s}^{-2}$

$8.5m{s}^{-2}$

$8.34m{s}^{-2}$

$94.75mm/se{c}^{-2 }$

$-94.75m/se{c}^{-2 }$

$94.75cm/se{c}^{-2 }$

$-94.75cm/se{c}^{-2 }$

$-94.65m/se{c}^{-2 }$

$\frac{T}{2}$

$\frac{ T}{4}$

$2T$

$4T$

$8T$

$0.03°F/sec$

$0.04°F/sec$

$0.05°F/sec$

$0.06°F/sec$

$0.07°F/sec$

$5.7\times {10}^{3}W{m}^{-2}$

$5.07\times {10}^{3}W{m}^{-2}$

$6.7\times {10}^{3}W{m}^{-2}$

$7.7\times {10}^{3}W{m}^{-2}$

$6.07\times {10}^{3}W{m}^{-2}$

$500 K$

$600 K$

$700 K$

$800 K$

$900 K$

$50 dB$

$53 dB$

$3.01 dB$

$30.1 dB$

$301 dB$

$30 m/sec$

$300 m/sec$

$300 cm/sec$

$332 m/sec$

$300 m/sec$

$\mathrm{\pi }$

$3\mathrm{\pi }$

$\frac{3}{\mathrm{\pi }}$

$\frac{\mathrm{\pi }}{3}$

$6\mathrm{\pi }$

$8.82 \mathrm{A}$

$5.72 \mathrm{A}$

$10 \mathrm{A}$

$100\mathrm{A}$

$4.72 \mathrm{A}$

$40 \mathrm{A}$

$10 \mathrm{A}$

$1 \mathrm{A}$

$100 \mathrm{A}$

$4 \mathrm{A}$

$1 : 2$

$1 : \sqrt{2}$

$1 : 3$

$1 : \sqrt{3}$

$2 : \sqrt{3}$

$2\mathrm{\Omega }$

$3\mathrm{\Omega }$

$4\mathrm{\Omega }$

$5\mathrm{\Omega }$

$6\mathrm{\Omega }$

$64 \mathrm{W}$

$80 \mathrm{W}$

$100 \mathrm{W}$

$160 \mathrm{W}$

$200 \mathrm{W}$

$50 \mathrm{cm}$

$45 \mathrm{cm}$

$35 \mathrm{cm}$

$30 \mathrm{cm}$

$25 \mathrm{cm}$

$250 \mathrm{cm}$

$240 \mathrm{cm}$

$230 \mathrm{cm}$

$220 \mathrm{cm}$

$200 \mathrm{cm}$

$25 \mathrm{cm}$

$50 \mathrm{cm}$

$60 \mathrm{cm}$

$75 \mathrm{cm}$

$100 \mathrm{cm}$

$11 \mathrm{cm}$

$3.5 \mathrm{cm}$

$28 \mathrm{cm}$

$5 \mathrm{cm}$

$4 \mathrm{cm}$

$\mathrm{c}$

$\frac{2\sqrt{3}}{5}\mathrm{c}$

$\frac{{\displaystyle \sqrt{6}}}{{\displaystyle 5}}\mathrm{c}$

$\frac{{\displaystyle 4\sqrt{6}}}{{\displaystyle 5}}\mathrm{c}$

$\frac{{\displaystyle 2\sqrt{6}}}{{\displaystyle 5}}\mathrm{c}$

$77°$

$78°$

$79°$

$80°$

$81°$

$2.8 m{s}^{-2}$

$0.28 m{s}^{-2}$

$1.4 m{s}^{-2}$

$0.14 m{s}^{-2}$

$0.08 m{s}^{-2}$

$64.6m/se$

$64.3m/sec$

$64.5m/sec$

$64.2m/sec$

$64.8m/sec$

$2.24m{s}^{-2}$

$0.224m{s}^{-2}$

$4.84m{s}^{-2}$

$0.448m{s}^{-2}$

$3.38m{s}^{-2}$

$2.50 m/sec$

$10.47 m/sec$

$26.18 m/sec$

$100 m/sec$

$13.09 m/sec$

$12.71 gm$

$1.27 gm$

$62.87 gm$

$4.23 gm$

$0.423 gm$

$0.35 : 1.0$

$0.63 : 1.0$

$0.58 : 1.0$

$0.84 : 1.0$

$0.48 : 1.0$

$140.37 gm$

$145.37 gm$

$147.37 gm$

$150.50 gm$

$118.85 gm$

$0.07248$

$0.2024$

$1.095$

$1.5\times {10}^{-2}$

$1.5\times {10}^{-3}$

$1.7570 amu$

$2.0572 amu$

$1.8072 amu$

$2.0070 amu$

$1.8572 amu$

$5.4869\times {10}^{-16}gm$

$1.0974\times {10}^{-15}gm$

$6.0356\times {10}^{-3}gm$

$5.4869\times {10}^{-4}gm$

$1.0974\times {10}^{-3}gm$

$190.50 Pa$

$186.50 Pa$

$210.20 Pa$

$200.15 Pa$

$40.50 Pa$

$N{H}_{4}CI+N{H}_4\left(OH\right)+H_{2}S$

$N{H}_{4}CI+N{H}_4\left(OH\right)$

$N{H}_{4}CI+N{H}_4\left(OH\right)+(N{H}_4{)}_{2}C{O}_3$

$N{H}_{4}CI+N{H}_4\left(OH\right)+BaC{O}_3$

$Dil. HCI+H_{2}S$

$4.76 min$

$2.38 min$

$5.58 min$

$3.45 min$

$6.34 min$

$K_{2}O$

$N{O}_2$

$S{O}_2$

$P_2{O}_{5 }$

$C{O}_2$

$1-1.5\%$

$2-4.5\%$

$0-0.4\%$

$0-0.1\%$

$7-8.5\%$

$4.21 gm$

$8.20 gm$

$8.25 gm$

$8.43 gm$

$4.25 gm$

$12.15\%$

$6.54\%$

$20.05\%$

$15.12\%$

$5.64\%$

$C_6{H}_{5}N{H}_2+NaN{O}_3+HCI\to C_6{H}_{5}NCI+H_{2}O+NaOCI$

$H{g}_2{I}_3+2N{H}_3=N{H}_2 \left[H{g}_2{I}_2\right]+N{H}_{4}I$

$C_6{H}_{5}N{H}_2+NaN{O}_2+HCI\to C_6{H}_{5}NCI+H_{2}O+NaCI$

$2Hg(N{O}_2{)}_2=2Hg+4NO+2O_2$

$2KHg{I}_2=2KI+2HgI$

$0.978$

$0.095$

$0.958$

$0.021$

$0.041$

$28$

$29$

$29$

$36$

$44$

$1$

$3$

$6$

$9$

$2$

ভারী তৈল

সবুজ তৈল

লঘু তৈল

কেরোসিন

পিচ

$5$

$7$

$8$

$10$

$12$

$1.66\times {10}^{7}K$

$6000°C$

$9000°C$

$1.76\times {10}^{9}K$

$1.96\times {10}^{8}K$

$110.25$

$126.22$

$150.35$

$175.21$

$191.12$

$1.08 gm$

$0.54 gm$

$0.75 gm$

$1.51 gm$

$2.16 gm$

$0.40M$

$0.50M$

$0.48M$

$0.45M$

$0.53M$

বেনজালডিহাইড

ইথাইল এ্যাসিটেট

ইথাইল বেনজয়েট

কে্লোবেনজিন

ইথাইল বেনজিন

$250$

$240$

$280$

$380$

$440$

$\frac{3}{2}$

$\frac{3}{5}$

$\frac{1}{2}$

$\frac{5}{7}$

$\frac{1}{5}$

$\frac{1}{2}\left[5^n\sin \left(\frac{n\mathrm{\pi }}{2}+x\right)\right]$

$\sin \left(n\mathrm{\pi }+5\right)$

$\frac{1}{2}\cos \left(\frac{5n\mathrm{\pi }}{2}\right)$

$\frac{1}{2}\cos \left(\frac{5n\mathrm{\pi }}{2}\right)$

$\frac{1}{2}\{5n\sin \left(\frac{n\mathrm{\pi }}{2}+5x\right)+\sin \left(\frac{{\displaystyle n\mathrm{\pi }}}{{\displaystyle 2}}+x\right)\}$

$e^x\log secx+c$

$e^x\log x+c$

$e^x\log 2x+c$

$e^x\log \left(secx\right)+c$

$e^x\log \left(\sin x\right)+c$

${\tan }^{-1} e-\frac{1}{2}$

$\frac{1}{2} {\tan }^{1}e$

${\tan }^{-1}\left(e\right)-\mathrm{\pi }/4$

${\tan }^{-1}\mathrm{e}-\frac{1}{3}$

${\tan }^{-1}{\mathrm{e}}^{2\mathrm{x}}$

$\frac{1}{18}{\tan }^{-1}\frac{2}{3}{x}^2$

$\frac{1}{12}{\tan }^{-1}\frac{3x^2}{2}$

$\frac{1}{24}{\tan }^{-1}\frac{3x^2}{2}$

$\frac{1}{24}In\frac{3x^2-2}{3x^2+2}$

$\frac{1}{24}In\frac{3x^2+2}{3x^2-2}$

$2$

$1$

$-2$

$-1$

$\frac{3}{2}$

$x$

$\sqrt{1-x^2}$

$\frac{x}{\sqrt{1-x^2} }$

$\frac{1}{\sqrt{1-x^2} }$

$\frac{x}{\sqrt{1+x^2} }$

$1$

$-1$

$2$

$-2$

$\frac{1}{2}$

$sec2\theta$

$\tan 3\theta$

$\sin 2\theta$

$\frac{1}{4}\sin 3\theta$

$\frac{1}{2}\cos 2\theta$

$\frac{a^2+b^2}{a^2-b^2}$

$\frac{a^2+b^2}{a-b}$

$\frac{a-b}{a+b}$

$\frac{a+b}{a-b}$

$\frac{a^2-b^2}{a^2+b^2}$

$11x+11y-8=0$

$30x-28y+15=0$

$11x-11y+8=0$

$59x+59y-12=0$

$59x-59y+42=0$

$3, -\frac{5}{3}$

$3, -\frac{2}{3}$

$1, -\frac{3}{5}$

$2, \frac{1}{5}$

$3, \frac{2}{7}$

$x+y=0$

$x-y=0$

$x+2y=0$

$3x+y=0$

$2x+5=0$

$3$

$\frac{1}{3}$

$\frac{9}{3}$

$3\sqrt{2}$

$\frac{2}{9}$

$\frac{19}{\sqrt{27}}$

$\frac{19}{29}$

$\frac{19}{\sqrt{29}}$

$\frac{24}{\sqrt{29}}$

$\frac{25}{\sqrt{27}}$

$2b:c:a$

$3c:a:b$

$a:b:c$

$a:2b:2c$

$3a:b:4c$

$3\sqrt{3}$

$\sqrt{31}$

$2\sqrt{3}$

$\sqrt{3}$

$\sqrt{43}$

$\frac{6}{7}$

$\frac{1}{7}$

$\frac{5}{63}$

$\frac{12 }{49}$

$\frac{16}{63}$

$2 sec$

$12 sec$

$10 sec$

$20 sec$

$\frac{26}{3} sec$

$-1+ 3i$

$\frac{{\displaystyle \sqrt{5} }}{7}+2i$

$\pm \left(\frac{4}{5}+\frac{7}{5}i\right)$

$\pm \left(\frac{{\displaystyle 1}}{{\displaystyle 2}}+\frac{{\displaystyle 2}}{{\displaystyle 3}}i\right)$

$\pm \left(-3+4i\right)$

${\log }_{e}2$

${\log }_e\frac{1}{2}$

${\log }_{e}5$

${\log }_{e}3$

${\log }_e\frac{1}{3}$

$-2$

$2$

$-1$

$1$

$0$

$\frac{8}{7}$

$-\frac{1}{8}$

$\frac{ 1}{8}$

$\frac{7}{8}$

$8$

$e^{\frac{1}{2}}$

$e^{\frac{\mathrm{\pi }}{3}}$

$\frac{-\mathrm{\pi }}{3}$

$\frac{\mathrm{\pi }}{3}$

$\frac{\mathrm{\pi }}{6}$

to

for

about

of

with

Adjective

Noun

Verb

Non-finite verb

Gerund

Bangladesh

in

on

so

lose

Something of the poet is there in the hearts of the kind piople.

Something of poet is there in tehhearts of the kind people.

Something of the poem is there in the hearts of kind people.

Something of poem is there in the hearts of kind people.

Poetry is always in the hearts of the kind people.

সেদিন বৃষ্টি হয়েছিলো, আমার ছাতা নেয়া উচিত ছিল

সেদিন বৃষ্টি হতে পারতো, তাই আমার ছাতা নেয়াটা সঠিক ছিল

সেদিন বৃষ্টি হতে পারতো, তাই আমার ছাতা নেয়াটা সঠিক ছিল

সেদিন বৃষ্টি হতে পারতো, আমার উচিত ছিল একটি ছাতা সাথে নিয়ে যাওয়া

সেদিন বৃষ্টি হয়েছিলো এবং আমার কাছে একটি ছাতাও ছিল

I like walking, gossiping and singing.

I like to walk, to gossip and to sing.

I like to walk, gossiping and to sing.

I like walking, gossiping and to sing.

I like walking, gossipings and singings.

Hardly had we reached the station than the train left.

Hardly had we reached the station when the train left.

No sooner had we reached the station when the train left.

Scarcely had we reached the station than the train left.

Scarely had we reached the station before the train left.

He made them to go home.

He made them go home.

He made them going home.

He made them gone home.

He made them to have gone home

to study hard

to be a good student

how to study effectively

the way of efficiency in study

efficient study method

Subject

Principal verb

Participle

Gerund

Preposition

witche

wizard

mank

priest

witchist

errata

erratumi

erratumes

erratum

erratumee

looking

go

finishes

her studies

at the

repainted

refurbished

reiterated

refurnished

reconstructed

Beautifully

Hard

Charmingly

Mockingly

Completely

Study carefully as you can cut a good figure in exam.

Study carefully when you can cut a good figure in exam.

If you are studying hard you can cut a good fifure in exam.

If you study carefully, you will cut a good figure in exam.

A good figure in exam depends on when you study much.

Adjective

Adverb

Preposition

Noun

Conjunction

writing materials

staple

virtue

mobile

faulty

Adverb

Adjective

Reflexive verb

Noun

Transitive verb

why do

dinn't I?

don't

do

why did

didn't he?

why

dinn't we?

don't we?

won't we?

water vapour, oxygen carbondioxide, methance and ozone.

water vapour, carbondioxide, methane nitrous oxide and ozone

water vapour, carbondioxide, methance, nitorgen and ozone.

oxygen, nitrogen, methane, corbondioxide and carbon monoxide

various hydro flurocarbons and sulfur hexafluoride.

Earth's would be much colder if it had no atmosphere.

Climate change is caused by the direct radiation from the sun

Scientists have known the green house effect since 1824.

Green house effect keeps the Earth's climate livable.

GHG trapped radiation from the sun

GHG decreased considerable in the recent years

Super cyclon sidr occurred in the Bay of bengal in 2007

Humanactivities upset natural blance of GHG

Tsunami occurred in the Indian Occan in the year of 2004

Natural increase og GHG in the atmosphere

methane

oxygen

sulfur hexafluoride

hydro fluorocarbons

per fluorocarbons