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How to tackle a source evaluation question?

When it comes to source evaluation, do not under-estimate the power of COP. 

By this I mean Content, Origin, Purpose. I will go through each one.

Content: They are pretty se...

LP
Answered by Liam P. History tutor
3301 Views

How should I tackle an essay question to receive top marks?

Essay questions are a very tough, but very common section of any A-Level exam. 

My first tip is to look at the question as a broad outline, so if the question is along the ...

LP
Answered by Liam P. History tutor
3458 Views

How can we write a C++ program to add two numbers?

To write a C++ program that adds two numbers we need to write the following code:

We write a line which calls a library that has functions we need:

#include

(Then we...

CB
Answered by Cosmin B. TBA tutor
2100 Views

The ratio between the molar mass of an alkene(A) and an alkyne(B) with the same number of carbon atoms is 1.05. Find the molecular formulas of the two hydrocarbons then write the reaction for how we can obtain the alkene A from the alkyne B.

We start by remembering the general formulas of alkenes and alkynes:
Alkenes - CnH2n
Alkynes - CnH2n-2
We calculate the molar mass of both of the...

CB
Answered by Cosmin B. Chemistry tutor
9109 Views

How can we calculate the derivative of function f(x)= (x+2)/(x-1)?

In order to calculate the derivative of the given function, we need to apply the laws of derivation. Therefore:
f '(x) = ((x+2)/(x-1))'
f '(x) = [(x+2)' * (x-1) - (x+2) * (x-1)' ]/ (x-1)2

CB
Answered by Cosmin B. Maths tutor
4386 Views

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