Mathematics

Introduction to Trigonometry

519+ practice questions available

Sample Practice Questions

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Medium

The value of tan 1° × tan 2° × tan 3° × ... × tan 89° is:

C∞

D−1

Hard

If cos θ + cos²θ = 1, then sin²θ + sin⁴θ equals:

C−1

Easy

If cos(A - B) = cos A cos B + sin A sin B, and A = 60°, B = 30°, what is cos 30°?

A1/2

Bsqrt(3)/2

Easy

What is the value of cos^2 45°?

A1/4

B1/2

C3/4

Medium

Simplify: (1 + sin A)(1 - sin A)/(1 + cos A)(1 - cos A)

Atan^2 A

Bcot^2 A

Csec^2 A

Dcosec^2 A

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