JEE MATHEMATICS MCQ: TRIGONOMETRIC EQUATIONS

1 Easy

1 of 1

Analyzing +4 | -1

\sin ^2 \theta-2 \sin \theta-1=0

is to be satisfied for exactly 4 distinct values of

\theta \in[0, n \pi], n \in N

, then the least value of

n

View answer and explanation

Correct option: C

Option C (4) is correct because the equation

\sin^2 \theta - 2 \sin \theta - 1 = 0

has exactly 4 distinct values of

\theta

in the interval

[0, n\pi]

when n = 4.

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