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Maths
A Level

a) Simplify 2ln(2x+1) - 10 = 0 b) Simplify 3^(x)*e^(4x) = e^(7)

a) To answer this question, one must be familiar with laws of logs, more sprecifically the rules when applied to the natural log of x, and exponentials (e). 2ln(2x+1) - 10 = 0 Step 1) 2ln(2x+1) = 10 Step ...

JB
Answered by Jordan B. Maths tutor
13474 Views

Find the intersection points between the graphs y=2x+5 and y=x^2-9.

To do this, first draw a sketch of both graphs to see roughly what kind of result we should expect to get. We know that at the intersection points, the values of x and y for both graphs must be equal. so ...

SB
Answered by Srinivass B. Maths tutor
2979 Views

Integrate by parts x2^x

Here we will use integration by parts because we have the product of two terms, x and 2^x. Using the integration by parts formula, we have to differentiate one of these terms and integrate the other. We c...

TV
Answered by Thomas V. Maths tutor
7236 Views

What is the integral of x^2 sin(x) between the limits 0 and π/2

For this question, we have to integrate x2 multiplied by sin(x). For integrating a product, you must use a method called integration by parts. Without bogging ourselv...

RW
Answered by Ruth W. Maths tutor
5633 Views

Use the chain rule to differentiate y=1/x^2-2x-1

First we will rewrite y so it is written with a power: y=1/x2-2x-1=(x2-2x-1)-1 Now let u=x2-2x-1 => du/dx = 2x -2 Writing y in terms of u: y=u-1 =...

AP
Answered by Alicia P. Maths tutor
16525 Views

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