TRIGONOMETRIC IDENTITIES

TRIGONOMETRIC IDENTITIES

Assessment

Interactive Video

Mathematics

11th Grade

Hard

Created by

Lucky Ajueyitsi

FREE Resource

7 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Pythagorean formula derivative for sines and Cosines.

Identities of Negative angles. Cosine and secants are EVEN functions.

Identities expressing trig functions in terms of their complements.

2.

FILL IN THE BLANK QUESTION

1 min • 1 pt

Complete the sum trigonometric identity

Sin (d + r ) =

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the sine of an angle θ in a right triangle?

Adjacent side over opposite side

Hypotenuse over opposite side

Opposite side over hypotenuse

Adjacent side over hypotenuse

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a Pythagorean identity?

secθ = 1 / cosθ

sin²θ + cos²θ = 1

tanθ = sinθ / cosθ

cos(90° - θ) = sinθ

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of cos(90° - θ)?

sinθ

cosθ

cotθ

tanθ

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which formula represents the double angle identity for cosine?

cos(2θ) = 1 - 2sin²θ

cos(2θ) = cos²θ - sin²θ

All of the above

cos(2θ) = 2cos²θ - 1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you calculate the area of a triangle using trigonometry?

1/2 * a * b * cos(C)

1/2 * a * b * sin(C)

a * b * sin(C)

a * b * cos(C)