Download the app

Questions  

If 1+sinx+sin2x+sin3x++ is equal to 4+23,0<x<πthen x=

a
π6
b
π4
c
π3 or π6
d
π3 or 2π3

detailed solution

Correct option is D

We have,00Now,1+sin⁡x+sin2⁡x+…x=4+23⇒11−sin⁡x=4+23⇒sin⁡x=1−14+23⇒sin⁡x=3+234+23=32⇒x=π3 or, 2π3

Talk to our academic expert!

+91

Are you a Sri Chaitanya student?


Similar Questions

If 0xπ and 81sin2x+81cos2x=30, then x is equal to


phone icon
whats app icon