Question

If sin$\theta$ = cos$\theta$, then value of $\theta$ is

• A. 0 degrees
• B. 45 degrees
• C. 30 degrees
• D. 90 degrees

Answer 1

The correct option is B

45 degrees

We know, sin$\theta$ = cos(${90}^{\circ }$ - $\theta$);

Given that , sin $\theta$ = cos $\theta$ ;

Therefore,

${90}^{\circ }$ - $\theta$ = $\theta$ ;

And thus, $\theta$ = ${45}^{\circ }$