Question

prove that

${sin}^{2} x - {cos}^{2} x = 0$

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Answer 1

Answer:

as, sin^2x+cos^x=1

such that,sin^2x-cos^x=0

Step-by-step explanation:

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Answer 2

as per laws,

sin^2x+cos^x=1

so we can identify that, sin^2x-cos^x=0

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