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Answered a Question in Math
i, j, k are unit vectors.
r(u,v)=(b+a*cos(u))*cos(v) i + (b+a*cos(u))*sin(v) j + a*sin(u) k
0<=u,v<=2pi and a=1/4...

Answered a Question in Math
The parametric equation of a circle of radius `r` is given by
`x=rcos(t``)`
`y=rsin(t)`
where `t=[0,Omega] ` and...

Answered a Question in Math
`int f(t) dt=int sin(t)+2 sinh(t) dt = int sin(t) dt + 2 int sinh(t) dt `
We note that the derivative of `cosh(t)=sinh(t)...

Answered a Question in Math
To find the solution of the differential equation `f'(x)=6x`
` ` with initial...

Answered a Question in Science
Initial velocity: `v_0 = 0 ` `m/s `
Acceleration: `a=240 ` `m/s^2 ` , for `20 ` `ms `
Equations:
`Delta s = 1/2...

Answered a Question in Math
We have `e^f(x)=e^g(x) ` which means that `f(x)=g(x) ` , where

Answered a Question in Math
`f(x)=ln(ln(ln(x))) `. To find the domain of `f(x)` we need to solve the inequality...

Answered a Question in Math
`f(x)=sqrt(2+ln(x)) `. To find the domain of `f(x)` we first need to find out what...

Answered a Question in Math

Answered a Question in Math
In order to find h'(x) we need to know a few things:
The derivative of log(f(x)), and of sqrt(x^21).
We need to know...