Build a question paper in 60 seconds.

1. A
   1
2. B
   2
3. C
   4
4. D
   8

Tap an option to check your answer.

1. A
   T, F
2. B
   F, T
3. C
   T, T
4. D
   F, F

Tap an option to check your answer.

1. A
   $\frac{4}{\pi}$ m/min
2. B
   $4\pi$ m/min
3. C
   $\frac{1}{4\pi}$ m/min
4. D
   $\frac{\pi}{4}$ m/min

Tap an option to check your answer.

1. A
   A(-8, 6, -7) B(-6, -2, -3)
2. B
   A(8, 6, 7) B(6, 2, 3)
3. C
   A(8, 6, 7) B(6, -2, -3)
4. D
   A(7, 6, 8) B(-3, -2, 6)

Tap an option to check your answer.

1. A
   1
2. B
   2
3. C
   3
4. D
   4

Tap an option to check your answer.

1. A
   $\cos^{-1}\frac{10}{19}$
2. B
   $\cos^{-1}\frac{11}{19}$
3. C
   $\cos^{-1}\frac{13}{19}$
4. D
   $\cos^{-1}\frac{14}{19}$

Tap an option to check your answer.

1. A
   $\frac{8}{3}$
2. B
   4
3. C
   2
4. D
   5

Tap an option to check your answer.

1. A
   0
2. B
   $\frac{1}{2\sqrt{2}}$
3. C
   $\frac{1}{4\sqrt{2}}$
4. D
   $\frac{1}{2\sqrt{2}(\sqrt{2}+1)}$

Tap an option to check your answer.

1. A
   $4\sqrt{3}$
2. B
   $6\sqrt{3}$
3. C
   $24\sqrt{3}$
4. D
   $12\sqrt{3}$

Tap an option to check your answer.

1. A
   45
2. B
   44
3. C
   48
4. D
   40

Tap an option to check your answer.

1. A
   $\frac{1}{1+25x^2}$
2. B
   $\frac{5}{1+25x^2}$
3. C
   $\frac{1}{1+5x^2}$
4. D
   $\frac{5}{1+5x^2}$

Tap an option to check your answer.

1. A
   $ad - bc > 0$
2. B
   $ad - bc < 0$
3. C
   $ab - cd > 0$
4. D
   $ab - cd < 0$

Tap an option to check your answer.

1. A
   $\frac{19}{25}$
2. B
   $\frac{18}{25}$
3. C
   $\frac{16}{25}$
4. D
   $\frac{7}{25}$

Tap an option to check your answer.

1. A
   $\frac{1}{\sqrt{6}}(-\hat{i} + 2\hat{j} - \hat{k})$
2. B
   $\frac{1}{\sqrt{6}}(\hat{i} + 2\hat{j} + \hat{k})$
3. C
   $\frac{1}{\sqrt{6}}(2\hat{i} - \hat{j} - \hat{k})$
4. D
   $\frac{1}{\sqrt{6}}(-\hat{i} - 2\hat{j} + \hat{k})$

Tap an option to check your answer.

1. A
   $\frac{87}{90^4}$
2. B
   $\frac{348}{90^4}$
3. C
   $\frac{874}{90^4}$
4. D
   $\frac{4}{10^4}$

Tap an option to check your answer.

1. A
   1
2. B
   2
3. C
   -1
4. D
   0

Tap an option to check your answer.

1. A
   0
2. B
   1
3. C
   -1
4. D
   $\frac{1}{2}$

Tap an option to check your answer.

1. A
   $\frac{244}{3}$
2. B
   $\frac{316}{3}$
3. C
   $\frac{200}{3}$
4. D
   $\frac{400}{3}$

Tap an option to check your answer.

1. A
   $\frac{1}{2}$
2. B
   2
3. C
   1
4. D
   $\frac{1}{\sqrt{2}}$

Tap an option to check your answer.

1. A
   $-\frac{4}{7}\tan^{-4/7}x + c$, where c is a constant of integration.
2. B
   $\frac{4}{7}\tan^{4/7}x + c$, where c is a constant of integration.
3. C
   $-\frac{7}{4}\tan^{-4/7}x + c$, where c is a constant of integration.
4. D
   $\frac{7}{4}\tan^{4/7}x + c$, where c is a constant of integration.

Tap an option to check your answer.

1. A
   27
2. B
   28
3. C
   4
4. D
   3

Tap an option to check your answer.

1. A
   (2, 3)
2. B
   [2, 3)
3. C
   [2, 3]
4. D
   (2, 3]

Tap an option to check your answer.

1. A
   6
2. B
   -6
3. C
   8
4. D
   -8

Tap an option to check your answer.

1. A
   $20\sqrt{2}$
2. B
   $\frac{10\sqrt{2}}{3}$
3. C
   $\frac{20\sqrt{2}}{3}$
4. D
   $10\sqrt{2}$

Tap an option to check your answer.

1. A
   $\cos^{-1}\left(\frac{2}{3}\right)$
2. B
   $\cos^{-1}\left(\frac{1}{3}\right)$
3. C
   $\sin^{-1}\left(\frac{1}{3}\right)$
4. D
   $\sin^{-1}\left(\frac{2}{3}\right)$

Tap an option to check your answer.