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Differentiate y = ln (3x + 2)

The equation for the derivative of the natural log is dy/dx = f'(x)/f(x) where f(x) = the contents of the natural log, in this case 3x+2. So, to get dy/dx we first need f'(x), the derivative of f(x). This...

WS
Answered by Will S. Maths tutor
20720 Views

Solve the simultaneous equations: y+4x+1=0 and y^2+5x^2+2x=0

y= -4x-1y2 = (-4x-1)2 = 16x2 +8x +1y2 +5x2 +2x = 0lets substitute what we found y2 equal to earlier, which gives us(16x2...

OU
Answered by Oleksandr U. Maths tutor
4719 Views

Solve int(ln(x)dx)

To solve this we must use integration by parts: int(udv) = uv - int(vdu) (1) Hence let u = ln(x), dv = dx => du=(1/x)dx, v=x, and now using (1) and substituting values we obtain int(ln(x)dx) = ln(x)x -...

GB
Answered by George B. Maths tutor
3384 Views

What is integration?

Integration can be viewed in many ways. The most common way to interpret an integral is to take the area under the curve you would like to integrate. For example Draw y=x, limit between 0 and 1, shade...

MS
Answered by Mikhail S. Maths tutor
3083 Views

Solve: x^2 + y^2 = 25 y - 3x = 13

Equation 1) x2 + y2 = 25 Equation 2) y - 3x = 13 First you need to substitute a variable so there is only one unknown in the equation: 2) y = 13 + 3x Substituting this into equation ...

LW
Answered by Lucy W. Maths tutor
11483 Views

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