Trig Identities

What is the value of cos 90°?

Which of these is the same as sin(A)?

What is cosec 30°?

Simplify: (1 - sin² θ) sec² θ.

Identify the incorrect identity:

What is cos A · sec A?

If sin θ = 1, what is θ in the range 0° to 90°?

Which of the following is equivalent to cot θ?

Simplify: sin² θ / (1 - cos² θ).

Value of tan 0° is:

What is the value of sin 60°?

Simplify: √ (sec² θ - 1).

Using compound angle formulas, sin(A + B) is equal to:

Express cos 2A in terms of sin A.

What is the value of sin 2θ if sin θ = 3/5 and cos θ = 4/5?

Simplify: (sin A + cos A)² - 2 sin A cos A.

The formula for tan(A - B) is:

If tan A = 1/2 and tan B = 1/3, what is the value of tan(A + B)?

Value of cos 75° using compound angle formula is:

Simplify: 2 cos² θ - 1.