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Can I have help with integrating by parts? I am unsure on how to use the formula.

Integrating by parts is simple. Simply put the equation into two parts, U and dV/dx. When considering which part of the original function will be U and which part will take dV/dx, you should consider which p...
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Answered by Milo L. • Maths tutor
3733 Views

A ball is thrown from ground level at an angle of 30 degrees from the horizontal with a velocity of 20 m/s. It just clears a wall with a height of 5m, from this calculate the distances that the wall could be from the starting position.

The first thing to do is draw a diagram to visualise the problem. Next we write down all the information the question gives us as well as which values we want to find. For this question it would be S=5m, U=2...
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Answered by Aysha A. • Maths tutor
4706 Views

How do I work out (2+y)^4 using the binomial expansion?

We're going to use the binomial expansion formula, which is a lot easier to remember than it looks: (a+b) n =C 0 *a n *b 0 + C 1 *a (n-1) *b 1 + C 2 *a (n-2) *b 2 +....+ C n *a 0 b n Now let's apply this for...
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Answered by Andrew B. • Maths tutor
4096 Views

Find dy/dx at t=3, where x=t^3-5t^2+5t and y=2t^2

Using the product rule, we find that dy/dx= dy/dt multiplied by dt/dx, where dt/dx is the reciprocal of dx/dt dx/dt= 3t^2-10t+5, dy/dt= 4t At t=3, dx/dt= 3(3)^2-10(3)+5=2, dy/dt= 4(3)= 12 Therefore, dt/dx= 1...
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Answered by Oore A. • Maths tutor
5412 Views

A) Multiply out 6(n - 2). B) Factorise psquared - 5p

A) 6n - 12 B) p(p-5)
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Answered by Ally W. • Maths tutor
7627 Views