The function is , .
Rolles Theorem :
Let be a function that satisfies the following three hypotheses.
1. is continuous on .
2. is differentiable on .
3. .
Then there is a number in such that .
The function is .
It is a polynomial function hence, it is continuous and differentiable over the interval.
Substitute in .
Substitute in .
, hence Rolls theorem is applicable on .
The function is .
Differentiate on each side with respect to .
Find the value of , such that .
.
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