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Find the equation of a Circle with centre (2,9) and radius 4.

In the form (x-x1)^2+(y-y1)^2=r^2
Hence equation is: (x-2)^2+(y-9)^2=16

Answered by Salman D. • Maths tutor

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Find the derivative of f(x)=exp((tanx)^(1/2))

i) It is given that f(x)=(-5-33x)/((1+x)(1+5x)), express f(x) in the form A/(1+x) + B/(1+5x) where A,B are integers. ii) hence express the integral of f(x) between x=3 and x=0 in the form (p/q)ln4 where p,q are integers.

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