show that √(1-cos^2a)sec^2a=tan a
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Step-by-step explanation:
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Step-by-step explanation:
√(1-cos^2a)sec^2a=tan a
LHS= √(1-cos²a)sec²a
√(sec²a-cos²a*sec²a)
=√((sec²a-1)
=(tan²a)
=tan a=rhs
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