Finding antiderivative problems I'm having trouble understanding how to find these antiderivatives:

Jamiya Weber

Jamiya Weber

Answered question

2022-06-24

Finding antiderivative problems
I'm having trouble understanding how to find these antiderivatives:
1. e 2
Is the antiderivative just e 2 x + c.
2. f ( x ) = x 2 3 + x x
= x 2 1 3 + x x 1 2 = x 2 3 + x 3 2
So the antiderivative according to antiderivative formulas:
A n t i = x 5 2 5 2 + x 5 2 5 2
= 2 x 5 2 5 2
= 4 x 5 2 5 + C = F
Is this right?
When I do a check, I don't get the original function:
F = 4 5 5 2 x 3 2 = 2 x 3 2
But that doesn't equal the original function. What did I do wrong?

Answer & Explanation

benedictazk

benedictazk

Beginner2022-06-25Added 22 answers

Explanation:
1. It is correct
You are making a calculation mistake (considering 2 3 as 3 2 ) Otherwise all other things are correct
preityk7t

preityk7t

Beginner2022-06-26Added 6 answers

Step 1
1. Correct, because e 2 is just a constant, and for any constant function f ( x ) = a, the antiderivative is a x + C.
Step 2
Note that 3 2 2 3 , and one becomes 5 2 the other one becomes 5 3 , so the correct antiderivative is 2 5 x 5 2 + 3 5 x 5 3 + C

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