Ques-30 if x= a sec theta + b tan theta and y= a tan theta + b sec theta, proof that x²-y²=a²-b².
pls anyone solve fast ⏩⏩
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Ques-30 if x= a sec theta + b tan theta and y= a tan theta + b sec theta, proof that x²-y²=a²-b².
pls anyone solve fast ⏩⏩
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