$60°$

$120°$

$90°$

$210°$

20 m

25 m

30 m

50 m

$\frac{28}{27}$

$\frac{27}{28}$

1

3

0

-2i

2i

-2

2

3

4

5

3x + 7y -13 =0

7x - 3y -11 =0

7x + 3y -17 =0

7x -3y -2=0

1

$2\sqrt{2}$

3

4

$x^2+y^2-4x+4y+90 =0$

$x^2+y^2-4x+4y-90=0$

$x^2+y^2 +4x -4y -90 =0$

$x^2+y^2-4x-4y+90=0$

3/2 sq. units

-3/2 sq. units

-2/3 sq. units

2/3 sq. units

1

3/5

5/3

4/5

1

০

2

1/2

$2x^2+7$

$7x^2+2$

$x^2+2x-1$

$x^2-2x+ 3$

$\sqrt{x^2+a^2}$

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

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

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

$\frac{2x+3y}{3x+10y}$

$\frac{2x-3y}{3x+10y}$

$\frac{2x+3y}{3x+10y}$

$-\frac{2x+3y}{3x+10y }$

$\frac{\sqrt{3}+1}{2\sqrt{2}}$

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

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

$\frac{\sqrt{3}-1}{2\sqrt{2}}$

$\frac{\mathrm{\pi }}{2}$

$\frac{3\mathrm{\pi }}{2}$

$\frac{3\mathrm{\pi }}{4}$

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

$30°$

$45°$

$60°$

$135°$

1

1

x < 1 or x >2

1 < x <2

4 or -5

5 or -4

3

10

72

14

4

15

x -2y + 3 =0

x + 2y +3=0

2x -y +3=0

x -6y -3=0

-4, 6

-6, 4

4,6

-6,-4

$\frac{1}{2}$

$\frac{5}{11}$

$\frac{6}{11}$

$\frac{3}{5}$

3 feet

4 feet

2 feet

1 feet

$x^2$+x+7=0

$x^2$-x+7=0

$x^2$+x-7=0

$x^2$-x-7=0

10110101

10010111

10101101

11010011

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

$\tan \left(x{e}^x\right) + c$

$\cos \left(x{e}^x\right) +c$

$cot \left(x{e}^x\right) +c$

$\sqrt{\tan }x1n\left({\cos }^{2}x\right) +c$

$\sin x \sqrt{\tan x}+c$

$2\sqrt{\tan x}+c$

$\frac{2}{3} (\tan x{)}^3/2 +c$

$\frac{1}{2}$

$\frac{\mathrm{\pi }}{\sqrt{2}}$

1

$\frac{\mathrm{\pi }}{2}$

4

6

0

5