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How do I find the maxima and minima of f(x) = e^(x^2)?

When dealing with maxima and minima points, there are two ways to go, one of these is to first compute the first derivative of the function, check when this function is zero, and then study its sign; the ...

JA
Answered by Jacob A. Maths tutor
3560 Views

Q4 on 2017 Edexcel C4 paper, concerns differentiation of multiple variables.

(a) Asks to differentiate an equation C: 4x2 - y3 - 4xy + 2y = 0Then use the fact that point P (-2,4), lies on C to find an expression for dy/dx Differential of form 8x - ...

AW
Answered by Alexander W. Maths tutor
3380 Views

7x + 6 > 1 + 2x

In order to solve this, we need to bring all of the x values to one side, we can do this by subtracting the 2x from both sides7x + 6 - 2x > 1 + 2x - 2x5x + 6 > 1 We then need to move the values onto...

MP
Answered by Mala P. Maths tutor
10041 Views

Simplify (48)^(1/2)

Simplify 481/2 :481/2=(124)1/2=(434)1/2=(4)1/2(4)1/2(3)1/2=22*(3)1/2=4(3)1/2

AN
Answered by Alex N. Maths tutor
4431 Views

The complex numbers Z and W are given by Z=3+3i and W=6-i. Giving your answers in the form of x+yi and showing how you clearly obtain them, find: i) 3Z-4W ii) Z*/W

i) 3Z-4WFor this question it is just the matter of substituting the complex numbers of Z and W into the equation. So, 3(4+3i)-4(6-i). Then multiply out the brackets to get 12+9i-24+4i. Finally simply to g...

JB
Answered by James B. Maths tutor
7018 Views

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