If Cos^4A÷cos^2B+sin^4A÷sin^2B=1
Then prove that cos^4B÷cos^2A+sin^4B÷sin^2A=1...
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SORRY, because solution is in two pages
By the way I have solved it thorough class 10 process . hope you understood.
By the way I have solved it thorough class 10 process . hope you understood.
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