tan^2A×cos^2A=1-cos^2A
Answers
Answered by
5
TAN^2A * COS^2A
= SIN^2A/COS^2A * COS^2A
( TAN A = SIN A/COS A)
=SIN^2A
=1-COS^2A ( SIN^2A + COS^2A = 1)
HENCE PROVED
= SIN^2A/COS^2A * COS^2A
( TAN A = SIN A/COS A)
=SIN^2A
=1-COS^2A ( SIN^2A + COS^2A = 1)
HENCE PROVED
Answered by
4
Tan^2A×Cos^2A=1-Cos^2A:-
Sol.-
Sin^2A\cos^2A×cos^2A=1-cos^2A
Sin^2A=1-cos^2A
1-cos^2A=1-cos^2A
Hence...LHS equal RHS..
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