$\frac{\sqrt{3}}{2}$

$\sqrt{3}$

$\frac{2}{\sqrt{3}}$

$\frac{1}{\sqrt{3}}$

$\frac{5}{13}$

$\frac{13}{5}$

$-\frac{5}{13}$

$-\frac{13}{5}$

8

-8

$\sqrt{8}$

$\pm 8$

b>0

c<0

a=0

a not = o

$\frac{1-2x^4}{1+2x^4}$

$\frac{1+2x^4}{1-2x^4}$

$\frac{1-4x^4}{1+4x^4}$

$\frac{1+4x^4}{1-4x^4}$

x

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

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

$\frac{1}{x}$

1

-1

0

2

$\sqrt{2}sq.unit$

$\sqrt{8}sq.unit$

56 sq. unit

$\sqrt{56}\mathrm{\pi } \mathrm{sq}.\mathrm{unit}$

48 ft/sec

96 ft /sec

120 ft /sec

160 ft /sec

2880

2080

1090

2800

$\frac{10}{33}$

$\frac{1}{3}$

$\frac{1}{33}$

$\frac{33}{100}$

a=b cosC + c cosB

c=a cosC + c cos A

b =b cos A + a cosB

a =c cosB + a cosC

1

-1

2

-2

$c=\pm a\sqrt{m^2-a}$

$c =\pm m\sqrt{a+m^2}$

$c=\pm m\sqrt{a-m^2}$

$c=\pm a\sqrt{1+m^2}$

$3x^2 +3y^2-6x+9y-14=0$

$6x^2+12x-y +15=0$

$x^2+2y^2+4x+2y-27=0$

${x}^2-y^2+3x-2y-43=0$

$\frac{3\sqrt{3}}{2} sq. units$

$\frac{3\sqrt{3}}{4} sq. units$

$\frac{1}{2}(\sqrt{3}+1)sq.units$

$\frac{\sqrt{3}{\displaystyle -}{\displaystyle 1}}{4} q.units$

$\frac{4}{3}$

$\frac{3}{4}$

$\frac{3}{2}$

1

$16\sqrt{3}ft$

16ft

32 ft

$32\sqrt{3}ft$

$f\left(x\right)=x^2+1$

$f\left(x\right)=\sin x +3$

$f\left(x\right) =\cos x -5$

$f\left(x\right) =x^3-1$

128

127

64

63