Class 11

Trigonometrical Equations question bank (Maths)

Practice 1,552 free Class 11 Maths - Trigonometrical Equations questions with answers and step-by-step solutions.

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Q1.

The number of roots of the quadratic equation $8\sec^2 \theta - 6\sec \theta + 1 = 0$ is

(A)

Infinite

(B)

$1$

(C)

$2$

(D)

$0$

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Q2.

If $\sin^2 \theta = \frac{1}{4},$ then the most general value of $\theta$ is

(A)

$2n\pi \pm (-1)^n \frac{\pi}{6}$

(B)

$\frac{n\pi}{2} \pm (-1)^n \frac{\pi}{6}$

(C)

$n\pi \pm \frac{\pi}{6}$

(D)

$2n\pi \pm \frac{\pi}{6}$

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