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Find the interval in R over which integral [-1,x] (t+1)^3 e^t dt is decreasing ? Please ans my ques .

Find the interval in R over which integral [-1,x] (t+1)^3 e^t dt is decreasing ? Please ans my ques .

Grade:12

4 Answers

suvidhi mehta
292 Points
6 years ago
derivative of function should be negative
3(1+t)^2e^t + (t+1)^3e^t
(t+1)^2e^t [t+4]
t
i hope  my answer is correct and it helps u
suvidhi mehta
292 Points
6 years ago
and t
the above is missing in first second and third line at the end.
suvidhi mehta
292 Points
6 years ago
less than 0
less than 0
and t less than -4 is missing in above given solution
sorry for inconvenience.
suvidhi mehta
292 Points
6 years ago
sorry in ur this question i didnt considered the integral
i did it again u can go through the other solution

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