NCERT Exemplar Mathematics - Class 11>Chapter 3 - Trigonometric Functions>EXERCISE>Q 72

EASY

11th CBSE

IMPORTANT

Earn 100

One value of $θ$ which satisfies the equation $\sin^{4} θ - 2 \sin^{2} θ - 1 = 0$ lies between $0$ and $2 π .$

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Important Questions on Trigonometric Functions

MEDIUM

11th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 11>Chapter 3 - Trigonometric Functions>EXERCISE>Q 73

If

cosec x = 1 + \cot x

then

x = 2 n π, 2 n π + \frac{π}{2} .

MEDIUM

11th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 11>Chapter 3 - Trigonometric Functions>EXERCISE>Q 74

If $\tan θ + \tan 2 θ + \sqrt{3} \tan θ \tan 2 θ = \sqrt{3}$ , then $θ = \frac{n π}{3} + \frac{π}{9}$ .

EASY

11th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 11>Chapter 3 - Trigonometric Functions>EXERCISE>Q 75

If

\tan (πcos θ) = \cot (πsin θ),

then

\cos (θ - \frac{π}{4}) = \pm \frac{1}{2 \sqrt{2}}

.