SHOW THAT cos 38°cos 52°- sin 38°sin 52° =0

Asked by debasreepartha | 23rd Apr, 2021, 08:38: AM

Expert Answer:

Consider
cos 38°cos 52°- sin 38°sin 52°
= cos(38 + 52)°
= cos 90°
= 0
Hence, cos 38°cos 52°- sin 38°sin 52° = 0

Answered by Renu Varma | 23rd Apr, 2021, 10:37: AM