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How to differentiate with respect to x, xsin2x.

There are to parts involving x in this expression, so we need to use the product rule. Let u=x and v=sin2x.So we find u'=1, and v'=2sin2x. Then the formula for the product rule gives us that d/dx(uv)= uv'...

Answered by Emily R. Maths tutor
7650 Views

Integrate Cos^2(x)

{} = integral sign for purpose of this solutioncos2x = 1 - sin2x (1)cos 2x = cos2x - sin2x (2)cos2x = 1 - (cos2x - cos 2x)cos2x...

Answered by Ryan S. Maths tutor
8960 Views

What is the photoelectric effect? (A-Level Physics)

The photoelectric effect states that electrons are emitted when electromagnetic radiation is shone upon a material. It also provides evidence for the particle-nature of light, since each photon interacts ...

Answered by Daniel D. Maths tutor
2894 Views

Solve the inequality x^2 – 9x – 22 ≥ 0

We are looking for what values of x make this statement true. To start we need to factorise the quadratic.We can do this in two ways, the quadratic formula, or just seeing what numbers work.We'll start wi...

Answered by Adam O. Maths tutor
3346 Views

Solve the simultaneous equations: 2x + y = 18 and x - y = 6

Note the following rules for simultaneous equations: 'Same sign subtract' and 'alternate sign add'. The first thing we need to do is find either y or x. To do so here, you add the equations together becau...

Answered by Megan S. Maths tutor
2396 Views

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