If sin a = cos^2 a find the value of sin a(1 + cos^2 a)
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sin a = cos ^ 2a ... (1)
Putting in
sin a(1 + cos^2 a)
we get sin a ( 1 + sina)
sin a + sin ^2 a
= Cos ^2 a + sin^2 a (From 1)
= 1 (sin^2a + cos^2 a = 1)
Putting in
sin a(1 + cos^2 a)
we get sin a ( 1 + sina)
sin a + sin ^2 a
= Cos ^2 a + sin^2 a (From 1)
= 1 (sin^2a + cos^2 a = 1)
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