/sci/ - Science & Math

I am in dire need of help /sci/ I've had trouble in the past with this stuff and i still do! So please help!

Evaluate:
Integral: (x) / (sqrt(9+8x^2-x^4)) dx

-I was think with this one we could use the substitution method and tweek (8x^2 - x^4) But im drawing a blank.

and...

Find the equation of the tangent line to y=2arcsinx at (1/2 , pi/3)

-No idea what to make of this, i dont want this one solved just need a way to make heads and tails of it and a process to solve it.

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I got a dick the size of my own arm(s)

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