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Okay, it will be tedious at first but easier later. Post if you get stuck.

I didn't. I just found how to do it.

What did you get?

HmI guess I have to differentiate things one by one.I figured it out but its quite boring

Try: Quotient Formula: D(f/g) = (g*Df - f*Dg)/(g²) where f(x)=sqrt(1-x²)^(½) and g(x) = 1-xAlso for the 1/2 power: D[f]^n = n*[f]^(n-1) * Df. I hope this helps.

I am a complete beginner

Lots of ways to approach that one -- what have you tried?

How do you differentiate the following: