Prove that (sinA + cosA)^2 + (cosA + secA)^2 = 7 + tan^2A + cot^2A

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The question is Prove that (sinA + cosA)^2 + (cosA + secA)^2 = 7 + tan^2A + cot^2A . In this video I have shown the most easy method to solve this problem. Watch the video and learn this trigonometric identities problem. This is a problem of your ncert class 10 trigonometric identities chapter

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