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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 goes t...
CW
Answered by Cameron W. Maths tutor
8879 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 to xdy/dx + y Then ...
RR
Answered by Ravi R. Maths tutor
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Given the function f(x) = 2x^(2) + 3, find the value of x when f(x) = 53.

Substitute f(x) = 53 into the equation given:f(x) = 53 = 2x 2 + 32). 2. Rearrange to get x 2 on the left hand side: x 2 = (53-3)/2 = 253). 3. Square root both sides. Remember, the answer can be positive or n...
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Answered by Emily B. Maths tutor
5773 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 to ...
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Answered by Alex G. Maths tutor
5201 Views

what are the highest common factor of 75 and 100?

First, we factorize each number.150=(5^2) 3 2 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 means that th...
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Answered by Hawa B. Maths tutor
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