Sorry but what you've written makes no sense.
Click on the sentence
Prove It did click on the sentence
and this is what he saw . . .
What's the answer to this equation,
and how did you solve it?
I assume you wrote this . . .
Only a few things wrong with it:
There is no equation . . . so we can't solve it.
It seems to be a definite integral, so we might evaluate it.
But the integral makes no sense.
. . The is meaningless.
. . Are the "0" and "7" -limits or -limits?
. . Is that really in front? . . . Why?