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Let RR be the set of real numbers and f...

Let `RR` be the set of real numbers and ` f: RR rarr RR, g: RR rarr RR, h: RR rarr RR ` be defined by , `f(x) =sin x, g(x)=3x -1, h(x)=x^(2)-4`.Find the formula which defines the product function h o (g o f) and hence compute [h o( g o f)] `((pi)/(2))`

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The correct Answer is:
`=(3-)^(2)-4=4-4=0`
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