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f(x)=ln(3x+1), x>0 and g(x)=d/dx(f(x)), x>0, find expressions for f^-1 and g

f^-1(x)=(e^x-1)/3 g(x)=3/(3x+1)
GK
Answered by George K. • Maths tutor
4635 Views

What are river cliffs and how are they formed?

River cliffs are features of meanders. In a meander the outside bank is where the Thalweg flows(fastest flowing part of the river), this means the velocity is greatest here so there is more available energy ...
KD
Answered by Kitty D. • Geography tutor
42250 Views

What is the conditional perfect, and how do you use it?

The conditional perfect, also called the past conditional ( conditionnel passé ), is used to express what would have happened. To form the conditional perfect, use the conditional of avoir or être , plus a p...
EI
Answered by Ellen I. • French tutor
20401 Views

A line has equation y=3x+4, state the gradient and the y-intercept

The gradient is always the number in front of the x, in this case it will be 3. Whereas for the y-intercept, it will always be the value that y equates to when x=0, in this case the y-intercept is (0,4).
RF
Answered by Ryan F. • Maths tutor
32593 Views

Multiply (x+2) & (x+3)

To do this question you would use the FOIL method. This is short for 'First, Outside, Inside, and Last'. First you multiply the first two values (the x's) from each bracket, then you multiply the outside val...
RF
Answered by Ryan F. • Maths tutor
3459 Views