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Differentiate y=3x^2+2x+4 and find the stationary points, decide if it is a local maximum or minimum.

First Differentiate the equation to getdy/dx=6x+2Equal this to 0 to find the stationary pointdy/dx=0=6x+2 => 6x=-2=> x=-2/6=> x=-1/3 differentiate again to find the whether it is a maximum or minimu...
JG
Answered by Jemma G. • Maths tutor
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(The question is too long so it's marked at the top of the answer space, sorry for any inconveniences)

Question: Particle P of mass m and particle Q of mass km are moving in opposite directions on a smooth horizontal plane when they collide directly. Immediately before the collision the speed of P is 5u and t...
XW
Answered by Xudong W. • Maths tutor
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Explain why a simple electric motor continues to turn in the same direction when there is a current in the coil (6 marks)

This question would be illustrated with the correct diagram to enhance understanding. The question is for 6 marks, so 6 key points need to be made. When the current is switched on, a magnetic field is genera...
LJ
Answered by Luke J. • Physics tutor
21613 Views

Integrate (3x^2 - (1/4)x^-2 + 3) dx

3x 2 -(1/4)x -2 +3 Split the problem into three separate terms and integrate independently.With any term where x is to the power of something, divide the coefficient by the value of the power plus 1 .e.g. 3x...
LL
Answered by Lucy L. • Maths tutor
5058 Views

What is 4536000 in words and what is that number to 3 significant figures?

In words: four million five hundred and thirty six thousand 3 S.F : 4540000
BW
Answered by Billy W. • Maths tutor
4400 Views