1.

If `y=x^n ,`then the ratio of relative errors in `y and x`is(a) `1:1`(b) 2:1 (c)1:n (d) n:1

Answer» `y= x^n`
`(del y)/y= (del x)/x`
now, ` del y = n x^(n-1) del x`
`(x xx nx^(n-1) del x)/(x^n del x)`
`= n:1`
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