$\pm (3-2i)$

$\pm (\sqrt{10}-\sqrt{2i})$

$\pm (\sqrt{10}+\sqrt{2i})$

$\pm (3+2i)$

None

$\frac{1}{14}\left[\begin{array}{cc}6& 4\\ -2& 1\end{array}\right]$

$\frac{1}{14}\left[\begin{array}{cc}-6& -4\\ 2& 1\end{array}\right]$

$\frac{1}{14}\left[\begin{array}{cc}6& 4\\ -2& -1\end{array}\right]$

$\frac{1}{-14}\left[\begin{array}{cc}-6& -4\\ 2& 1\end{array}\right]$

None

$0°$

$45°$

$95°$

$90°$

None

$\sin 36°$

$2-\sin 47°$

$-\sqrt{2\cos 27°}$

$\sqrt{2 }\cos 27°$

None

$\frac{y \tan x}{2}$

$\frac{\tan x}{2}$

$cot x$

$\frac{cot x}{2}$

None

12 ft/sec

10 ft/sec

8 ft/sec

7 ft/sec

None

52

5/2

25

2/5

None

${\sin }^{-1}{e}^x$

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

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

${\cos }^{-1}{e}^x$

None

12N

10N

8N

2N

None

$a(1-b{)}^2$

$b(1-b{)}^2$

$-a(b-1{)}^2$

$-b(a-1{)}^2$

None

1, In 2

In 2, 1

$e^{-1}, In 2$

$e, e^{-1}$

None

$ax+by+a^2+b^2=0$

$ax+by=a^2+b^2$

$ax+by-ab=0$

$ax+by=0$

None

parabola, focus (1, 0)

parabola, focus (0, 1)

circle, centre (1/2, 0)

circle, centre (0,1/2)

None

$x^2+y^2=7$

$y^2=4x$

$y^2=x^2+1$

$\frac{x^2}{4}+\frac{y^2}{3}=1$

None

$0, \pm \sqrt{3k}$

$0, \pm k$

$\pm k$

$\pm \frac{k}{\sqrt{3}}$

None

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

$\frac{1}{4}\sqrt{2-\sqrt{2+\sqrt{2}}}$

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

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

None

5

4

3

2

None

$R\left\{\frac{1}{2}\right\},R\left\{-\frac{1}{2}\right\}$

$R\left\{-\frac{1}{2}\right\},R\left\{\frac{1}{2}\right\}$

$R\left\{\frac{1}{2}\right\},R\left\{\frac{1}{2}\right\}$

$R\left\{-\frac{1}{2}\right\},R\left\{-\frac{1}{2}\right\}$

None

$\frac{\pi }{a^2}$

$\frac{\pi }{2}$

$\pi$

$\frac{\pi }{2a^2}$

None

a

2a

$2a^2$

$a^2$

None

$\frac{1}{2}In\left(2\right)$

$\frac{1}{4}In\left(\frac{1}{3}\right)$

$\frac{1}{4}In\left(3\right)$

$In\left(\frac{1}{3}\right)$

None

None

$\phi$

$A^{/}$

$B^{/}$

B

$0$

1

2

3

None

$\frac{5}{2}$

$\frac{2}{3}$

$-\frac{2}{3}$

$-\frac{5}{2}$

None

$3\sqrt{10}sq. unit$

$10\sqrt{3}sq. unit$

$5\sqrt{10}sq. unit$

$10\sqrt{5}sq. unit$

None

720

2106

2160

1260

None

$\frac{5}{16}$

$\frac{9}{16}$

$\frac{12}{16}$

$\frac{11}{16}$

None

$\frac{\pi }{6}$

$\pm \frac{\pi }{6}$

$n\pi \pm \frac{\pi }{6}$

$n\pi \pm \frac{\pi }{4}$

None

$\frac{10}{3}$

$\frac{5}{3}$

$-\frac{10}{3}$

$-\frac{1}{3}$

None

$5 ft/se{c}^2$

$\frac{5}{2} ft/se{c}^2$

$3 ft/se{c}^2$

$2 ft/se{c}^2$

None