Use identities to find values of the sine and cosine functions of the function for the angle measure. V2 and cos 0>0 20, given sin 0= cos 20 = (Simplify your answer, including any radicals. Use integers or fractions for any numbers in the expression

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A: Topic = Trigonometry

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Q: Use a calculator to find a decimal approximation for the following expression.   sin ​(−42′​)

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A: we know that  sin(360+theta)=sin (theta) and sin(45°)=1/root 2

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Q: Use identities to find values of the sine and cosine functions of the function for the angle…

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Q: Use identities to find values of the sine and cosine functions of the function for the angle…

A: Given tanx=3  and cosx&lt;0By quotient identity ,sin xcos x=31⇒sin x 3=cos x1=±132+12⇒sin x3=cos…

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A: Explanation of the answer is as follows

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Q: Use the Pythagorean Theorem to find sin t, cos t, and tan t. Do not use a calculator. 17 8 sint= 17…

A: pythagorus theorum:hypotenuse2=base2+perpendicular2. see 2nd step.

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Q: Use double angle identities to find values of the sine and cosine functions for each angle. (a) 28,…

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A: Given:cosu=-14cos-u=?Even function:cos-x=cosx

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