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what is d(2x^3)/dx?

the differential of a function y=2x^3 is the rate of change of that function. finding the differential is done by following the steps below:1) bring down the power of the x term and multiply it by the ter...

CZ
Answered by Charlotte Z. Maths tutor
4013 Views

I do not understand this topic and particularly this example. In the class the result was found out but I still do not get it. How did the teacher came up with this outcome?

Firstly please show me what was the topic and the example in class. Given the topic I will provide the answer and the easiest way to complete it.
For example, let's say the student had to solve the ...

MF
2472 Views

Peter is 180cm tall, correct to 2 significant figures. Alice is 150cm tall, correct to 2 significant figures. What is the upper and lower bound of the difference in their heights?

Upper bound of Peter's height = 185cmLower bound of Peter's height = 175cmUpper bound of Alice's height = 155cmLower bound of Alice's height = 145cmFor the upper bound of the difference, we want the upper...

JT
Answered by James T. Maths tutor
3574 Views

Use de Moivre's theorem to calculate an expression for sin(5x) in terms of sin(x) only.

de Moivre's theorem gives us that (cos(x) + i sin(x))n = cos(nx) + i sin(nx), for integers n and real values x.Therefore cos(5x) + i sin(5x) = (cos(x) + i sin(x))5 = cos5(...

CB
34109 Views

What’s the best way to learn my set texts?

There are many different options for learning your set-texts. You need to learn them inside out and at the same time you want to do this as quickly as possible so it is vital to have the right approach. H...

RH
2179 Views

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