Question

For the given statements select the correct option.

Assertion(A): The value of $2ta{n}^2{45}^o+co{s}^2{30}^o-si{n}^2{60}^o$ is 22.

Reason(R): $tan{45}^o=1$, $cos{30}^o=\frac{\sqrt{3}}{2}$ and $sin{60}^o=\frac{\sqrt{3}}{2}$

• A. Both (A) and (R) are true and (R) is not the correct explanation of (A).
• B. (A) is true but (R) is false
• C. (A) is false but (R) is true
• D. Both (A) and (R) are true and (R) is the correct explanation of (A).

Answer 1

The correct option is D Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true and (R) is the correct explanation of (A).