Question

if sin theta = cos theta then find the value of theta​

Answer 1

Hi friend,

⭕ Your answer is 45 degree..

✔✔HERE'S THE SOLUTION....

Answer 2

Answer:

let us substitute theta with alpha

$\sin( \alpha ) = \cos( \alpha ) \\ divide \: both \: by \cos( \alpha ) \\ \frac{ \sin( \alpha ) }{ \cos( \alpha ) } = \frac{ \cos( \alpha ) }{ \cos( \alpha ) } \\ = > \tan( \alpha ) = 1 \\ = > \tan( \alpha ) = \tan(45)$

on comparing both sides,

we get ,

$\alpha = 45$

or, ∅ = 45 °.