MCQ
The derivative of f(x) = sin2x is:
- Acos 2x
- Btan 2x
- Csin 2x
- Dcosec 2x
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If $\text{P}(\text{A}\cup\text{B})=\text{P}(\text{A}\cap\text{B})$ for any two events A and B, then:
If the probability of A to fail in an examination is $\frac{1}{5}$ and that of B is$\frac{3}{10}$Then, the probability that either A or B fails is