Trigonometric Substitution

*DISCLAIMER* due to an arithmetic error, the answer is off by a factor of 7, but the trigonometric substitution operation was still preformed correctly.
Evaluate the integral:
(sqrt(81x^2 -49)/(x^3) dx

[MooseyGoosey]

I think for sake of completion you should still substitute back in what theta is in terms of x.

[pabloooooooooooo]

is it not 9^2 /7 since its 9^3/9^1 = 9^2

[whotellinghim]

i still don’t understand how you thought of this in the first place, like how does it makes sense?

[odreik]

Reduce the size of your webcam, it is too big😂