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Find the equation of the tangent to the curve y = x√x at the point (4,6).

Simply the equation. y = x√x is the same as y = x3/2. This is because the square root of any articular number is the same as saying that number raised to the power half. Now to do x1...

VV
Answered by Vyshnavi V. Maths tutor
2738 Views

a) Integrate ln(x) + 1/x - x to find the equation for Curve A b) find the x coordinate on Curve A when y = 0.

a) Integrate ln(x) by parts: u = ln(x), dv/dx = 1, du/dx = 1/x, v = x int(udv/dx) = uv - int(du/dx * v) = ln(x)/x - x so int(ln(x) + 1/x - x) = ln(x)/x - x + ln(x) + x^2 + Cb) y = ln(x)/x - x + l...

EN
Answered by Ellie N. Maths tutor
2580 Views

Use integration by parts to evaluate: ∫xsin(x) dx.

Since our function is a product of two "mini-functions" of x, we are able to use integration by parts.The trick for this is to correctly set 'u' and 'dv'. 'u' should be labelled as the function ...

BA
Answered by Bailey A. Maths tutor
3112 Views

Factorise 5x^2 + 20x

Factorising is a way of simplifying an equation by putting it into common parts. In the equation above we can see that x is common to both the 5x^2 and the 20x. If we divide by x and put this in-front of ...

DC
Answered by Dominic C. Maths tutor
4670 Views

Find where the equation y = x^2 + x - 2 crosses the x-axis.

First, notice that any equation crosses the x-axis when y = 0.Second, notice that x2 + x - 2 = 0 is an example of a quadratic equation. So, we generally do 1 of 3 things (Factorise, Complete th...

AR
Answered by Asad R. Maths tutor
2636 Views

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