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Math

Indiana Math

Precalculus: Trigonometry: Identities

TR.ID.1

Fully covered
Prove the Pythagorean identity sin^2(x) + cos^2(x) = 1 and use it to find trigonometric ratios, given sin(x), cos(x), or tan(x), and the quadrant of the angle.

TR.ID.2

Not covered
Verify trigonometric identities and simplify expressions using trigonometric identities.
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TR.ID.3

Fully covered
Prove the addition and subtraction identities for sine, cosine, and tangent. Use the identities to solve problems.

TR.ID.4

Not covered
Prove the double- and half-angle identities for sine, cosine, and tangent. Use the identities to solve problems.
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