value of sin^2 30-cos^2 60
Answers
Answered by
3
Answer:
we know that,
sin 30°=1/2,Cos60°=1/2
Now sin²30+cos²60=1/2×1/2+1/2×1/2
=1/4+1/4
=2/4=1/2
Hope it helps
Answered by
0
Answer:
sin30=1/2, cos60=1/2
so sin^2 30-cos^2 60=(1/2)^2-(1/2) ^2=1/4-1/4=0
therefore sin^2 30-cos^2 60=0
(or)
cos60=cos(90-30)
cos60=sin30 since sin(90-theta) =cos theta
replace cos 60 by sin30
so sin^2 30-sin^2 30 =0
THEREFORE IN ANY WAY YOUR ANSWER IS 0(Zero).
I hope you are satisfied by my answer.
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