NOTES: 5-5 INVERSES SohCahToa Given an angle measurement, Sin, Cos, and Tan are used to solve for a missing side of a right triangle. What if we need.

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Presentation transcript:

NOTES: 5-5 INVERSES SohCahToa Given an angle measurement, Sin, Cos, and Tan are used to solve for a missing side of a right triangle. What if we need to solve for angles?

Inverse Trig Functions: Given side measurements, inverses are used to solve for a missing angle in a right triangle.

sinθ/cosθ/tanθ: angleside ratio Summary sinθ/cosθ/tanθ: angleside ratio sin-1θ/cos-1θ/tan-1θ: side ratioangle 3

Calculator Tips: Carry decimals through to the last step (only round off for final answer.) Use parentheses when solving for sin-1θ, cos-1θ, tan-1θ in calculator. 3.

Calculator Tips: 3. Use given (exact) values when solving. Try to avoid using rounded off decimal answers when making additional calculations. Use parentheses when solving for sin-1θ, cos-1θ, tan-1θ in calculator.

Refer to chart on page 305 for #5, 6, and 15-21

↓Find all missing sides and angles!!

Check even answers p.309: