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Verify That Each Equation Is an Identity sec⁡2x−1=tan⁡2x+cos⁡2x−11−cos⁡2x\sec ^{2} x-1=\frac{\tan ^{2} x+\cos ^{2} x-1}{1-\cos ^{2} x}

Question 63

Essay

Verify that each equation is an identity.
- sec⁡2x−1=tan⁡2x+cos⁡2x−11−cos⁡2x\sec ^{2} x-1=\frac{\tan ^{2} x+\cos ^{2} x-1}{1-\cos ^{2} x}

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