UPSC NDA Math Model Paper 7

© examsiri.com

Question : 9 of 120

Marks: +1, -0

What is

cos‌7‌x−cos‌3‌x

sin‌7‌x−2‌sin‌5‌x+sin‌3‌x

equal to?

tan x
cot x
tan 2x
cot 2x

Go to Question:

Prev Question

Next Question