Trigonometry PreCalculus 1

Question 1

Determine the exact trigonometric ratio for cos(3π/4).

Accepted Answer

-1/√2

Question 2

Determine which of the following equations represents the given graph:

Accepted Answer

y = sin2x

Question 3

Calculate the value of the following trigonometric functions.

Accepted Answer

-1.155

Question 4

Use Pythagoras Theorem to calculate:

Accepted Answer

14.87

Question 5

Use Pythagoras Theorem to calculate:

Accepted Answer

7.62

Question 6

Which of the following trigonometric function is described?

Accepted Answer

A. y=sin x

Question 7

Pythagoras' Theorem applies to

Accepted Answer

right angled triangles

Question 8

Calculate the value of the following trigonometric functions

Accepted Answer

-0.268

Question 9

Find the values of trigonometric functions

Accepted Answer

-0.602

Question 10

What trigonometric ratio would you use to find x? Find x and round to the nearest whole number.

Accepted Answer

sine; 14

Question 11

Trigonometry: Solve for 'x'

Accepted Answer

41.41

Question 12

To the nearest degree, which angles satisfy the equations cosθ=-4/7 (0°≤θ≤360°)

Accepted Answer

Ⅰ and Ⅲ

Questions 12