Question

what is the value of
$sin^2a + sin^2a \times tan^2a$
(a)
$sin ^2 a + cos ^2 a$
(b)
$tan ^ 2a$
(c)
$sin^2a$
(d)
$cos ^2a$
​

Answer 1

Hii its tom85

=sin^2a + sin^2atan^2a

=sin^2a(1 + tan^2a)

=sin^2a(sec^2a)

=sin^2a/cos^2a

=tan^2a

using

1+ tan^2a= sec^2a

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hope it may helps you dude