Brilliant

Excel in math and science.

Join using Facebook Join using Google Join using email

Existing user? Log in

Your answer seems reasonable. Find out if you're right!

That seems reasonable. Find out if you're right!

Join using Facebook Join using Google Join using email

Existing user? Log in

Pythagorean Identities

Basic Proving Identities using Pythagorean Theorem

Which of the following is equal to \(1-\cos^2\theta?\)

\[\sec^2\theta\] \[\cot^2\theta\] \[\csc^2\theta\] \[\sin^2\theta\]

View wiki

by Brilliant Staff

Which of the following is equal to \(1-\sin^2\theta?\)

\[\sec^2\theta\] \[\cos^2\theta\] \[\csc^2\theta\] \[\cot^2\theta\]

View wiki

by Brilliant Staff

Which of the following is equal to \((1-\cos\theta)(1+\cos\theta)?\)

\[\csc^2\theta\] \[\cos^2\theta\] \[\sin^2\theta\] \[\cot^2\theta\]

View wiki

by Brilliant Staff

Which of the following is equal to \((\sin\theta-1)(\sin\theta+1)?\)

\[-\cos^2\theta\] \[\sec^2\theta\] \[-\csc^2\theta\] \[\cot^2\theta\]

View wiki

by Brilliant Staff

Which of the following is equal to \(\dfrac{\sec^2\theta}{\tan^2\theta+1}?\)

\[1\] \[\sin^2\theta\] \[\cos^2\theta\] \[\frac{1}{4}\]

View wiki

by Brilliant Staff

Problem Loading...

Note Loading...

Set Loading...