Prove that: 1) csc 0 + tan 0 . sec 0 csc 0.sce20 1-cos" x 2) sin x .cos x tan x 3) 3 cos' x-sia x+1 4 cot' x sinx 中中中

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A: topic - linear equations

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A: SOLUTION-

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A: Let's find.

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A: solution:-Appying De Moivre's Theoremrcosθ+isinθn=rncosnθ+isinnθ

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A: Explanation of the answer is as follows

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A: THE SOLUTION IS GIVEN BELOW

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