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Find cos4Asin4A.cos^4 A - sin^4 A.

Asin² A +cos² A

Bcos2A

C0

D2

Answer:

B. cos2A

Read Explanation:

cos⁴(A) - sin⁴(A) = cos(2A)


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Find x if sinx=12sin x=\frac{1}{2}

image.png

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9π3\frac{9\pi}{3}

What is the value of

tan30+cot30sec30+tan30×sin30\frac{tan30^\circ+cot30^\circ}{sec30^\circ+tan30^\circ}\times sin30^\circ