If sin(x) = 4/5,pi/2 < x < pi,find the value of sin(2x)
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If sin(x) = 4/5,pi/2 < x < pi,find the value of sin(2x)
sin2x=2sinxcosx
∵sinx=4/5
∵π/2
∵sinx=4/5
∵π/2
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