Download the app

Questions  

3cosec20sec20 is equal to

Remember concepts with our Masterclasses.

80k Users
60 mins Expert Faculty Ask Questions
a
1
b
2
c
3
d
4

Ready to Test Your Skills?

Check Your Performance Today with our Free Mock Tests used by Toppers!

detailed solution

Correct option is D

3cosec⁡20∘−sec⁡20∘=3sin⁡20∘−1cos⁡20∘=3cos⁡20∘−sin⁡20∘sin⁡20∘⋅cos⁡20∘=432cos⁡20∘−12sin⁡20∘2sin⁡20∘⋅cos⁡20∘=4sin⁡60∘cos⁡20∘−cos⁡60∘sin⁡20∘sin⁡40∘=4sin⁡40∘sin⁡40∘=4

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?

ctaimg

Create Your Own Test
Your Topic, Your Difficulty, Your Pace


Similar Questions

If tanθ=ab, then bcos2θ+asin2θ is equal to


phone icon
whats app icon