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Maths
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How do you solve simultaneous equations?

There are two main methods for solving simultaneous equations. The first method is the elimination method. This method uses addition or subtraction of the two equations with equal amounts of 'x' or 'y' in...

WS
Answered by Wei Shi H. • Maths tutor
4364 Views

(x-4)^3

=(x-4)2(x-4)=(x2-8x+16)(x-4)=x3-4x2-8x2+32x+16x-64= x3-12x2+48x-64

PB
Answered by Pavel B. • Maths tutor
3377 Views

How do I find out the equation of a line?

First of all, we must remember the formula for the equation of a line.

This is y=mx+c.

It is important to understand what each part of the equation means:

JB
Answered by Jessica B. • Maths tutor
3052 Views

Find the first derivative of f(x) = tan(x).

First, use the trigonometric identity tan(x) = sin(x) / cos(x) to rewrite the function. It should now be very apparent that f(x) is now actually a ratio of two functions, and therefore the quotient rule w...

HR
Answered by Henry R. • Maths tutor
3451 Views

Use approximations to 1 significant figure to estimate the value of 0.101 x (51.2)^2 / (3.96)^1/2

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