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It is given f(x)=(19x-2)/((5-x)(1+6x)) can be expressed A/(5-x)+B/(1+6x) where A and B are integers. i) Find A and B ii) Show the integral of this from 0 to 4 = Kln5

Firstly, we are given that f(x) can be expressed in the above form, so we write this out: (19x-2)/((5-x)(1+6x)=A/(5-x)+B/(1+6x) We then multiply by the denominator of f(x): 19x-2=A(1+6x)+B(5-x) Now we can ch...
MW
Answered by Mike W. • Maths tutor
6509 Views

How do I know which words have "el" or "la" as their article?

"El" is the masculine article: El foco, El chico, El jardín. (Almost) all words ending in "o" will be masculine. Any other ending apart from "a" will also surely be masculine. &...
PR
Answered by Penrose R. • Spanish tutor
2544 Views

How do I do the french "r" sound?

It is a guttural sound (comes from the throat). Practice by gargling with water, that is where the sound comes from. It is harsh and easily achievable with a little practice.
PR
Answered by Penrose R. • French tutor
3665 Views

Find the possible values of x for x^2 = 36-5x.

While this question may appear unfamiliar at first, it is just a quadratic equation in disguise. Rearranging such that it equals 0: x^2 + 5x - 36 = 0 Now this equation is ready to be solved! We can approach ...
BH
Answered by Ben H. • Maths tutor
10188 Views

How can we learn as much vocabulary as possible during these sessions?

In A-level books, each is separated into several topics with short lists of vocabulary. By talking about these topics, I will ask you to write any important new wword down and ask you to learn them at home i...
PR
Answered by Penrose R. • French tutor
3221 Views