Day 331: NDA Maths

1. A.
   240
2. B.
   180
3. C.
   120
4. D.
   60

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1. A.
   $\dfrac{1}{12}$
2. B.
   $\dfrac{3}{40}$
3. C.
   $\dfrac{1}{15}$
4. D.
   $\dfrac{7}{120}$

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1. A.
   $\sin\left(\dfrac{\theta}{2}\right)$
2. B.
   $\cos\left(\dfrac{\theta}{2}\right)$
3. C.
   $2\sin\left(\dfrac{\theta}{2}\right)$
4. D.
   $2\cos\left(\dfrac{\theta}{2}\right)$

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1. A.
   $x^2-\alpha x-\beta x+\alpha\beta+c=0$
2. B.
   $x^2-\alpha x-\beta x+\alpha\beta-c=0$
3. C.
   $x^2+\alpha x+\beta x+\alpha\beta+c=0$
4. D.
   $x^2+\alpha x+\beta x+\alpha\beta-c=0$

Tap an option to check your answer.

1. A.
   51
2. B.
   55
3. C.
   110
4. D.
   111

Tap an option to check your answer.