prove it sin90°=2cos45°sin45°
Answers
Answered by
1
Okay on LHS (i.e, left hand side)
sin90°=1
&
on RHS(right hand side)
2cos45°sin45° =
we know that both cos45°sin45° = 1/√2*1/√2
= 1/2
therefor 2*(1/2)=1
hence LHS=RHS
Hope this helps you.
sin90°=1
&
on RHS(right hand side)
2cos45°sin45° =
we know that both cos45°sin45° = 1/√2*1/√2
= 1/2
therefor 2*(1/2)=1
hence LHS=RHS
Hope this helps you.
Answered by
0
sin90=1,cos45=1/root of2,sin45=1/root of2
=2cos45sin45
=2.1/root of2.1/root of 2
=2.1/2
=1
hence proved
=2cos45sin45
=2.1/root of2.1/root of 2
=2.1/2
=1
hence proved
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