1.

Find the value of Integral sin60°.dx(Step by step)

Answer»

Step-by-step explanation:

Let ABC be an EQUILATERAL triangle. Draw AD perpendicular to BC. Then 'D' is the middle point of BC. Let each SIDE of equilateral triangle be 2a.Then BD=a=CD. And

AD=underrootABsquare - BDsquare

=UNDERROOT 4asquare-a square

=a underroot 3

Sin60°=AD/AB

=a underroot 3/2a

=underroot3/2



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