prove it by proving the identity
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hey
you can do this question by converting cos^2x into sin^2x
that is
1-sin^2x + tan^2x-1/sin^2x
the 1 will be canceled
and you will be left with tan^2x-sin^2x/sin^2x
now separate the numerator
that is
tan^2x/sin^2x-sin^2x/sin^2x
which will be equal to
sec^2x-1
which is equal to tan^2x
you can do this question by converting cos^2x into sin^2x
that is
1-sin^2x + tan^2x-1/sin^2x
the 1 will be canceled
and you will be left with tan^2x-sin^2x/sin^2x
now separate the numerator
that is
tan^2x/sin^2x-sin^2x/sin^2x
which will be equal to
sec^2x-1
which is equal to tan^2x
sriram77:
ur welcome
in denominator there is sin^2x then how it is proved as tan^2x
?????
hey i seperated the numerator
tan^2x/sin^2x
if you convert tan into sin and cos
sin will be canceled
and you will be left with 1/cos^2x
which is equal to sec^2x
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refer to the attachment for the solution is.
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