help me out with question number 7 - Maths - Introduction to Trigonometry

Question

help me out with question number 7

Varad Vasantrao Tagadpallewar · Accepted Answer

Dear student,
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_5dc7ad96ea563%20jpg">Regards