I'm unable to solve this problem please help - Maths - Trigonometric Functions

Question

I'm unable to solve this problem please help

Abhra Chakraborty · Accepted Answer

Dear student,
Here is the solution
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5c444390e2094%20jpg"
style="width: 1023px; height: 693px;">Regards