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solve the Simultaneous equations: y= x+6 and y=2x^23

2x2 = x + 62x2 - x - 6 = 0
[+-1 x-12]2x2 - 4x + 3x - 6 =02x(x-2) 3(x-2) = 0(2x + 3)(x-2) = 0x =2 or -3/2
y = 2 + 6 y = 8
y = -3/2 + 6y = 9/2
(2,8)(-3/2...

LD
Answered by Lehana D. Maths tutor
3001 Views

Differentiate Sin^2(X) with respect to X

'With respect to X' means we will be differentiating all the X parts (To put it simply). First we show that the differential of Sin(X) is Cos(X), we can show this graphically using the whiteboard. Then we...

TH
Answered by Thomas H. Maths tutor
13475 Views

Prove that 0.5757... (recurring) = 19/33. Hence, write 0.3575757... (recurring) as a fraction in its lowest terms.

Two parts to the question. Let's focus on part one:Let x = 0.575757... (1)This means that 100x = 57.575757... (2)If you subtract (1) from (2), we get: 99x = 57Divide both sides by 99: x = 57/99Simplify: x...

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Answered by Oliver V. Maths tutor
6185 Views

Find the positive solution to b^2 +5b – 6 =o


(b-1)(b+6)=0b= 1 and -6Positive Solution = 1

Answered by Maths tutor
2630 Views

Find the stationary points of y = x^3 -3x^2 - 9x +5

A stationary point is a point where dy/dx = 0.First we need to find dy/dx. This is done by differentiating y term by term to get dy/dx = 3x^2 - 6x - 9.Setting this equal to zero, we need to solve 3x^2 - 6...

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Answered by Adam S. Maths tutor
5389 Views

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