Pythagorean Identities in Trigonometry
These tailormade worksheets precisely deal with expressing the Pythagorean theorem in terms of trigonometric functions. Topics involving Pythagorean identities to simplify trig expressions, finding the values of trigonometric functions and mastering the trickiest part  verifying or proving the statements are included here. Attempt the free worksheets for a starter and subscribe for more.

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Pythagorean identities in Trig: Printable chart
Introduce Pythagorean Identities in Trigonometry with the chart provided here. Equip yourself with a thorough knowledge of the identities, as a precursor to the tasks featured here.
The worksheet focuses on simplification of trigonometric expressions using the Pythagorean identities in combination with the other trigonometric identities.

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Find the value of trig functions: Level 1
Attempt this array of worksheets encompassing exercises to find the value of trigonometric functions based on the given trig ratios and the quadrant. Apply Pythagorean Identities to solve each problem.

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Find the value of trig functions: Level 2
Reinforce the usage of the identities with these worksheets, employ them to find the exact values of the other five trigonometric functions; based on the one given.

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Verify the trig equations  Pythagorean Identities
Exercise your brains with this worksheet to verify the given trigonometric expressions are equivalent using the Pythagorean identities.

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(3 Worksheets)