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Question
find `dy/dx, if y= cos ^-1 (sin 5x)`
Sum
Solution
y=`"cos"^-1` (sin 5x)
= `cos^-1 {cos (pi/2-5x)}`
=`pi/2-5x`
diff.w.r.t.x
`dy/dx=-5`
= -5
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Concept of Demography
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