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No.2 trigonometry sum..
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Answered by
2
the solution of this question :-
Cos A+Cos2A=1
=> cosA = 1 – cos2A = sin2A
So, Required is
sin2A + sin4A
= Cos A+Cos2A
=1
I hope the solution is clear
Thanks.
Cos A+Cos2A=1
=> cosA = 1 – cos2A = sin2A
So, Required is
sin2A + sin4A
= Cos A+Cos2A
=1
I hope the solution is clear
Thanks.
bhaveshvk18:
sin2A x sin2A = cosA x cosA.= cos2A?
by using identity
why not 2CosA only cos2A
it is cos squ not cos2a
ok..
thank you
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Answered by
4
Answer:
3
Step-by-step explanation:
A + cos^2 A = 1
sin^2 A + sin^4 A = 3
how?
by using identity
is the answer 3 or 1
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