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Integrate cos(2x)sin(2x)

dy = sin(2x)cos(2x) dxlet u = sin(2x)du/dx = 2cos(2x)dx = du/2cos(2x)dy = (cos(2x)/2cos(2x))dudy = du/2y = u/2y = sin(2x)/2
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Describe the ionic basis of an action potential, and how this is reflected on the cell's membrane potential (6 marks)

At rest (steady state) there is a greater concentration of Na+ ions and a smaller concentration of K+ ions on the outside compared to the inside of the cell, and the membrane potential is about -70mV. Upon d...
KK
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√5(√8 + √18) can be written in the form a√10 where a is an integer. Find the value of a.

We have: √5(√8 + √18) Now, multiply out the brackets (multiply everything inside the brackets by √5). This gives us √40 + √90 We now need to simplify the SURDs. We know that we want the answer in the form a√...
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outline the behavioral characteristics of OCD 4 marks

The behavioral characteristic of OCD is the compulsions, this is regarding the performance of the persons behaviour. There are two elements of compulsive behaviour:1) compulsions are repetitive - an OCD suff...
ZB
Answered by Zaynah B. • Psychology tutor
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What causes the heart to contract?

This type of question requires careful explanation and therefore would need to be broken down into chunks. One of the reasons for this is that it may be completely new concepts for students. My answer to a s...
SR
Answered by Saajan R. • Biology tutor
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