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y = ln(2x+3 / 7x^3 +1)
d/dx(2x+3 / 7x^3 + 1) by quotient rule which is(v.du/dx - u.dv/dx) / v^2 where u=2x+3 and v=7x^3 +1 gives (-27x^3 -63x^2 +2) / (7x^3 +1)^2
so d/dx(ln(2x+3 / 7x^3 +...
Here we have a function made from the product of two functions, so we canuse the product differenciation rule.
y=uv => dy/dx=udv/dx + vdu/dx
Therefore dy/dy=(x-2)^2 + 2(x-2)(x+1)
Now although this might seem like quite a complex question at first, it's a little less intimidating when we take a while to look at it- you might notice that we can seperate x and y terms like so:1...
lnx differentiates to 1/x
4x^2 differentiates to 8x
3e^4x differentiates to 12e^4x
therefore the answer is: 1/x + 8x + 12e^4x
(a) Start with f(x)= 3x − 5; y=3x - 5, and switch x and y before rearanging to get y in terms of x again:
y=3x - 5
x=3y - 5
(x+5)/3=y
Therefore f^−1(x)=(x+5)/3
(b) Start...
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