Question

If $\theta ={45}^o$, then $2\sin \theta cos\theta$ is :

• A. $0$
• B. $1$
• C. $2$
• D. None of these

Answer 1

The correct option is B $1$

Given, $\theta ={45}^o$

Therefore, value of $2\sin \theta cos\theta$ is

$=2\ast \sin \left({45}^o\right)cos{45}^0$

$=2\ast \left(1/2\right)$

$=1$