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If the relation f(x)={(2x-3",",x le 2),(...

If the relation `f(x)={(2x-3",",x le 2),(x^(3)-a",",x ge2):}` is a function, then find the value of a.

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The correct Answer is:
7
Given relation is function if `2(2)-3=2^(3)-a" or " a=7`
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