Question
Asked Feb 3, 2020
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Prove each of the following trig idienties

SinX - (SinX)(Cos2X) = Sin3X

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Expert Answer

Step 1

Given:

Trigonometry homework question answer, step 1, image 1
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Step 2

Calculation:

Identity used:

Trigonometry homework question answer, step 2, image 1
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Step 3

Solving L....

Trigonometry homework question answer, step 3, image 1
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Tagged in

Math

Trigonometry

Trigonometric Ratios