prove that tan^2A×sin^2A=tan^2A-sin^2A
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taking RHS tan^2A - sin^2A
tan^2A - sin^2A = sin^2A/cos^2A - sin^2A
=sin^2A - sin^2A cos^2A/cos^2A
=sin^2A(1 - cos^2A/cos^2A)
=sin^2A(sin^2A/cos^2A). (by the identity sin^2 + cos^2 = 1)
=sin^2A × tan^2A
hope it helps you
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tan^2A - sin^2A = sin^2A/cos^2A - sin^2A
=sin^2A - sin^2A cos^2A/cos^2A
=sin^2A(1 - cos^2A/cos^2A)
=sin^2A(sin^2A/cos^2A). (by the identity sin^2 + cos^2 = 1)
=sin^2A × tan^2A
hope it helps you
keep smiling
Answered by
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Answer:
Step-by-step explanation:
Tan^2A×sin^2A=tan^2A-sin^A
Taking RHS
Tan^2A-sin^2A
Sin^2A/cos^A -sin^2A
Taking common sin^2A
Sin^A(1/cos^2-1)
Sin^2(1-cos^2/cos^2)
Sin^2(sin^2/cos^2)
Sin^2×tan^2
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