Question

if
A = 45 degree show that sin 2A=2 sin A Cos
А​

Answer 1

Answer:

Step-by-step explanation:

A=45 degrees

LHS:

sin2A=sin90

sin90=1

RHS:

2sinAcosA

2sin45cos45

$2(\frac{1}{\sqrt{2} } )(\frac{1}{\sqrt{2} } )$

2*1/2

1

HENCE PROVED

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