Trig Formulas and Identities

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Put everything in terms of Sin and cos

1st Step for Simplifying:

Look out for identities

2nd Step for Simplifying:

When you have a fraction inside another fraction rewrite as division and multiply reciprocal

3rd Step for Simplifying:

Put fractions together by getting a common denominator

4th Step for Simplifying:

Stuck? Start over

5th Step for Simplifying:

sin(pi/2-ø)

Cofunction Formulas: cosø

tan(pi/2-ø)

Cofunction Formulas: cotø

sec(pi/2-ø)

Cofunction Formulas: cscø

csc(pi/2-ø)

Cofunction Formulas: secø

cos(pi/2-ø)

Cofunction Formulas: sinø

cot(pi/2-ø)

Cofunction Formulas: tanø

cos(2ø)

Double Angle Formulas: 1-2sin^2ø

cos(2ø)

Double Angle Formulas: 2cos^2ø-1

sin(2ø)

Double Angle Formulas: 2sinøcosø

cos(2ø)

Double Angle Formulas: cos^2ø-sin^2ø

cosø

Even/Odd Formulas: cos(-ø)

-cotø

Even/Odd Formulas: cot(-ø)

-cscø

Even/Odd Formulas: csc(-ø)

secø

Even/Odd Formulas: sec(-ø)

-sinø

Even/Odd Formulas: sin(-ø)

-tanø

Even/Odd Formulas: tan(-ø)

csc^2ø

Pythagorean Identities: 1+cot^2ø

1-sin^2ø

Pythagorean Identities: cos^2ø

1-cos^2ø

Pythagorean Identities: sin^2ø

1

Pythagorean Identities: sin^2ø+cos^2ø

sec^2ø

Pythagorean Identities: tan^2ø+1

1/secø

Reciprocal Identities: cosø

1/tanø

Reciprocal Identities: cotø

1/sinø

Reciprocal Identities: cscø

1/cosø

Reciprocal Identities: secø

1/cscø

Reciprocal Identities: sinø

1/cotø

Reciprocal Identities: tanø

Odd

Symmetry over the origin

Even

Symmetry over the y-axis

sinø/cosø

Tangent and Cotangent Identities: Tanø

cosø/sinø

Tangent and Cotangent Identities: cotø


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