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Trigonometric Functions

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

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Concept Quizzes

Trigonometry Warmup
Degrees and Radians
Basic Functions
Specific Values
Reciprocal Functions
Inverse Functions
Bearing Word Problems
Problem Solving

Challenge Quizzes

Level 2
Level 3
Level 4

Specific Values of Trigonometric Functions

What is the value of \( \sin 30 ^ \circ \)?

\[ \frac{\sqrt{2}} {2} \] \[ \frac{\sqrt{3}}{2} \] \[ \frac{1}{2} \] \[ 1\]

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by Brilliant Staff

What is the value of \( \cos 45 ^ \circ \)?

\[ \frac{1}{2} \] \[ \frac{\sqrt{2}} {2} \] \[ 1\] \[ \frac{\sqrt{3}}{2} \]

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by Brilliant Staff

What is the value of \( \tan 60 ^ \circ \)?

\[ \sqrt{3} \] \[ 1 \] \[ \frac{1} {\sqrt{3}} \] \[ 0 \]

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by Brilliant Staff

What is the value of \( \sin^2 0 ^ \circ + \cos ^2 90 ^ \circ \)?

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by Brilliant Staff

What is the value of \( \sin (-360^\circ) \) ?

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by Brilliant Staff

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