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How do I integrate sin^2(x)?

First, remember the compound angle formula for cosine: cos (2x) =cos^ 2 (x)-sin^ 2 (x). Now use the identity sin^ 2 (x)+cos^ 2 (x)= 1 to give : cos (2x) =(1-sin^ 2 (x))-sin^ 2 (x)=1 -2sin^ 2 (x) Rearranging ...
CD
Answered by Christopher D. • Maths tutor
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Why is the sky blue?

The colour of the sky comes from sunlight scattering off of the air molecules (and to your eyes). Blue light gets scattered more than red light because it has a shorter wavelength, and so the light you see w...
AP
Answered by Alex P. • Physics tutor
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How does neurotransmission across a synapse occur?

Neurotransmission, put simply, is how your brain controls your body. It occurs by the passage of action potentials (electrical signals) across a synapse between two or more neurons. Neurons don't touch each ...
KM
Answered by Krish M. • Psychology tutor
6107 Views

If v = 10, a = 2 and t = 4, what is u

v = u+at u=v-at u=10 - (4*2) u=2
NC
Answered by Nicholas C. • Physics tutor
4453 Views

How to write a well structured conclusion to a source question

It is important that all arguments from the individual sources are tied in at the end. As you will have cross referenced in the essay, this will make things much easier. Seperate the sources into those that ...
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Answered by Nicholas C. • History tutor
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