It is given that at x = 1, the function ...

It is given that at x = 1, the function `x^4-62x^2+ax+9` attains its maximum value, on the interval [0,2]. Find the value of a ?

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`f(x)=x^4-62x^2+ax+9,[0,2]f(x)=4x^3-124x+a` Since, f(x) attains maximum at x =1, f(x) = 0 at x =1 `thereforef(x)=0rArr4-124+a=0` a=120

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