Build a question paper in 60 seconds.

1. A
   $60$
2. B
   $65$
3. C
   $75$
4. D
   $80$

Tap an option to check your answer.

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

Tap an option to check your answer.

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

Tap an option to check your answer.

1. A
   $a^2,b^2,c^2$ are in AP.
2. B
   $a^2,b^2,c^2$ are in GP.
3. C
   $a^2,b^2,c^2$ are in HP.
4. D
   $a^2,b^2,c^2$ are neither in AP nor in GP nor in HP.

Tap an option to check your answer.

1. A
   $\dfrac{b^2c^2-a^2}{a^2c^2-b^2}$
2. B
   $\dfrac{b^2c^2-a^2}{a^2b^2-c^2}$
3. C
   $\dfrac{b^2c^2-a^2}{2(a^2c^2-b^2)}$
4. D
   $\dfrac{b^2c^2-a^2}{2(a^2b^2-c^2)}$

Tap an option to check your answer.

1. A
   $5I$
2. B
   $2I$
3. C
   $12I$
4. D
   $I$

Tap an option to check your answer.

1. A
   $\begin{pmatrix}1&-1&0\\-2&3&-4\\-2&3&-3\end{pmatrix}$
2. B
   $\begin{pmatrix}1/2&-1/2&0\\-1/3&1&-2\\-1/3&2&-3/2\end{pmatrix}$
3. C
   $\begin{pmatrix}2&-2&0\\-4&6&-8\\-4&6&-6\end{pmatrix}$
4. D
   $\begin{pmatrix}1/5&-1/5&0\\-2/5&3/5&-4/5\\-2/5&3/5&-3/5\end{pmatrix}$

Tap an option to check your answer.

1. A
   $\dfrac{\pi}{2}$
2. B
   $\dfrac{\pi}{3}$ or $\dfrac{2\pi}{3}$
3. C
   $\dfrac{\pi}{4}$ or $\dfrac{3\pi}{4}$
4. D
   $\dfrac{\pi}{6}$ or $\dfrac{5\pi}{6}$

Tap an option to check your answer.

1. A
   $(-6,8)$
2. B
   $(-6,-8)$
3. C
   $\left(\frac{5}{\sqrt{2}},\frac{5}{\sqrt{2}}\right)$
4. D
   Cannot be determined due to insufficient data

Tap an option to check your answer.

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

Tap an option to check your answer.

1. A
   $\left(3,\dfrac{7}{2}\right)$
2. B
   $\left(3,\dfrac{7}{3}\right)$
3. C
   $\left(\dfrac{7}{2},2\right)$
4. D
   $\left(\dfrac{5}{2},2\right)$

Tap an option to check your answer.

1. A
   $\dfrac{5\sqrt{3}}{4}$
2. B
   $\dfrac{5\sqrt{3}}{2}$
3. C
   $\dfrac{3\sqrt{5}}{4}$
4. D
   $\dfrac{3\sqrt{5}}{2}$

Tap an option to check your answer.

1. A
   $2x+2y+2z-3=0$
2. B
   $4x+4y+4z-3=0$
3. C
   $4x+8y+8z-15=0$
4. D
   $4x+8y+8z+15=0$

Tap an option to check your answer.

1. A
   $\langle -7,-6,1\rangle$
2. B
   $\langle -7,6,1\rangle$
3. C
   $\langle -6,5,1\rangle$
4. D
   $\langle 6,5,1\rangle$

Tap an option to check your answer.

1. A
   $5$
2. B
   $4$
3. C
   $1$
4. D
   $4$

Tap an option to check your answer.