Question Video: Finding the Value of a Trigonometric Function Using Cofunction Identities

Find the value of cos (90° + 𝜃) given sin 𝜃 = 3/5 where 0° < 𝜃 < 90°.
Find the value of cos (90° + 𝜃) given sin 𝜃 = 3/5 where 0° < 𝜃 < 90°.

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Lesson Video: Evaluating Trigonometric Functions Using Cofunction

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