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Integrate 1/x

ln|x| + c

GG
Answered by George G. Maths tutor
3499 Views

An item costs £65 but requires an additional 20% VAT to be added. How much change will you get from £100

(65 / 10)*2 = 13 This is the total amount of VAT to be added.65 + 13 = 78 This is the total amount spent.100-78= 22 Total change is £22.

CR
Answered by Carys R. Maths tutor
2696 Views

Solve the following two equations simultaneously: 3x + y = 10, x + y = 4

  1. Label the equations Equation 1: 3x + y = 10Equation 2: x + y = 42) Establish if the equations need to be subtracted or added together: 'Same sign is subtract and different sign is add' Therefore we ...
BA
Answered by Bethany A. Maths tutor
2632 Views

Sketching a quadratic

Firstly ensure equation is equal to 0, so all variables are on one side of the equation. Factorize the quadratic to find the x intercepts. Complete the square to find the minimum/maximum point of the curv...

AB
Answered by Abraham B. Maths tutor
2634 Views

Prove the square of an odd number is always 1 more than a multiple of 4

We will start by representing an odd number using algebra. Let n be a integer, i.e. 1,2,3,4,etc. then we can define an odd number as (2n)-1. This is because if a number is of the form 2n it must be even, ...

TD
Answered by Tutor285427 D. Maths tutor
32587 Views

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