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Solve the equation x=4-|2x+1|

This type of equation involves a modulus, this the component enclosed in the straight lines, |2x+1|. A modulus takes the absolute value of its contents, this means that regardless of the input you always hav...
BC
Answered by Benjamin C. • Maths tutor
18893 Views

Find the derivative of the following expression: y=x^3+2x^2+6x+5.

As the expression contains 4 separate terms that are added together, we can treat this as 4 separate differentiations. The general rule for differentiation for a general term bx^n is (b n)x (n-1) . For examp...
MN
Answered by Matthew N. • Maths tutor
5422 Views

y = 6x^2 + 8x + 2. Find dy/dx

y = 6x 2 + 8x + 2 To find the first derivative of this equation, we must multiply the powers of x with the coefficient. Therefore, we do 2 times 6 (2 is the power and 6 is the coefficient) for the first term...
RD
Answered by Raj D. • Maths tutor
9577 Views

Find the area encompassed by y=(3-x)x^2 and y=x(4-x) between x=0 and x=2.

This is an integration question. The limits have been provided. Firstly find the integral for the first curve int{x(4-x)}dx int{4x-x 2 }dx 2x 2 -x 3 /3 Apply the limits x=2,0 [2(2) 2 -(2) 3 /3]-[2(0) 2 -(0) ...
AD
Answered by Anthony D. • Maths tutor
4036 Views

How do I multiply 2 matrices?

To multiply two matrices we need to name them A and B. If for example we have 2 2X2 square matrices we know this will create a 3rd 2x2 martix For this example we will use : A: 2 -1 3 4 and B: 5 0 -2 -2 To mu...
CR
Answered by Ciara R. • Maths tutor
16970 Views