Answer / sourabh rana

consier a right traingle whose one angle is very small:i.e.0.009887 which mean other 2 angles are equivalently equals to 90.when we find sin90 in this traingle which is equals to P/H.in this triangle P-->H

Answer / anonymus

Sin(0)=0.So, Cos(90)=0.
We Know Sin^2 (x)+ Cos^2 (x)= 1.
Applying this, at x= 90,we get sin(90)=(+-)1.
But Sin(90)>0.So Sin(90)= 1.

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