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Differentiate (x-2)^2

Answer is 2x - 4. This is found by following the standard differentiation procedure of n(ax-b)^n-1 where n was the previous power and a and b are the value inside the bracket. This means that it first goe...

Answered by Cameron W. Maths tutor
5639 Views

The equation of a curve C is (x+3)(y-4)=x^2+y^2. Find dy/dx in terms of x and y

Expand to get xy+3y-4x-12=x^2+y^2Rearrange to xy+3y-4x-12-x^2-y^2
Then you have to differentiate implicitly:
use product rule on xy to get:u = x v =ydu = 1 dv = dy/dx
so xy differentiates t...

Answered by Ravi R. Maths tutor
3745 Views

Given the function f(x) = 2x^(2) + 3, find the value of x when f(x) = 53.

  1. Substitute f(x) = 53 into the equation given:f(x) = 53 = 2x2 + 32).

    2. Rearrange to get x2 on the left hand side: x2 = (53-3)/2 = 253).

    3. Sq...
Answered by Emily B. Maths tutor
4682 Views

What are indices laws?

Indices are often referred to as powers of a number. A power of a number is the number of times you multiply that number by itself. The indices laws are the rules for how these numbers can be manipulated ...

Answered by Alex G. Maths tutor
3833 Views

what are the highest common factor of 75 and 100?

First, we factorize each number.150=(5^2)32 and 100=(2^2)*(5^2) then to calculate the highest common factor we take the common factors with the smallest powers. In this case (5^2) and 2. That mea...

Answered by Hawa B. Maths tutor
2480 Views

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