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find the diffrential of 3sin2x+4cos2x

dy/dx=6cos2x-8sin2xExplanation: cos x difrentiates to -sinx, we must times the coefficient of cos2x,(4) , by the differential of 2x (ie 2), giving -(4x2)sin2x.Similarly, sinx differentiates cosx, so using...

AC
Answered by Amy C. Maths tutor
5487 Views

You have three keys in your pocket which you extract in a random way to unlock a lock. Assume that exactly one key opens the door when you pick it out of your pocket. Find the expectation value of the number of times you need to pick out a key to unlock.

Let X be the random variable for this question. P(X=x) = 1/3 for all x. When X=x, we have that it took x times for us to retrieve the correct key.Thus, we have the infinite sum 1/3 + 22/31/3 + 3*...

NO
1992 Views

explain process of glycolysis

firstly, glucose is converted into glucose phosphate and then into glucose biphoshate through phosphorylation. This process turns two molecules of ATP to ADP. This is then split into two molecules (3 carb...

YH
Answered by Yasmin H. Biology tutor
3451 Views

Describe the differences between different types of blood vessels

Capillaries-one cell thick, minimal diffusion distanceveins-wise lumen, many elastic fibres, valves presentarteries-thick muscular layer to withstand BP

BV
Answered by Bela V. Biology tutor
2388 Views

Write about an inspirational person in your life (100 words)

This would be regarded as a writing task. The student would need to apply the following grammar rules:
Correct use of case endings (where possible)Use of conjunctions / variety of conjunctionsUse of ...

AL
Answered by Anna L. Russian tutor
1117 Views

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