EASY
11th CBSE
IMPORTANT
Earn 100

One value of θ which satisfies the equation sin4θ-2sin2θ-1=0 lies between 0 and 2π.

50% studentsanswered this correctly

Important Questions on Trigonometric Functions

MEDIUM
11th CBSE
IMPORTANT
If cosecx=1+cotx then x=2nπ,2nπ+π2.
MEDIUM
11th CBSE
IMPORTANT

If tanθ+tan2θ+3tanθtan2θ=3, then θ=nπ3+π9.

EASY
11th CBSE
IMPORTANT
If tan(πcosθ)=cot(πsinθ), then cosθ-π4=±122.