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Integrate cos^2A

Integrating sin^2A and cos^2A is a bit nasty so we can use double angle formula to make it a little simpler. cos2A = cos^2A - sin^2A = 2cos^2A - 1. We can rearrange to get cos^2A in nicer terms. cos^2A = 1/2...
RM
Answered by River M. • Maths tutor
5115 Views

Expand and Simplify (5x - 2y)^2

We can rewrite this as (5x - 2y)(5x - 2y). Now all we have to do is expand the brackets. We can do this by multiplying all the terms in the second bracket by all the terms in the first bracket and then sum t...
RM
Answered by River M. • Maths tutor
6395 Views

¿Cuales son las razones por las que los jóvenes toman drogas ?

Hay numerosas razones por las que los jóvenes toman drogas, como por ejemplo, si tienen problemas en casa o cuando se ven tentados por la curiosidad, inseguridad, miedos e impulsividad que la adolescencia co...
CA
Answered by Cammie A. • Spanish tutor
2302 Views

How should I go about revising my set text?

Its best to tackle set text learning in smaller chunks, rather than in one go. What I tend to do is start with the translation learning by matching up each English word with the Latin as I go along. If there...
TD
Answered by Tutor157623 D. • Latin tutor
2725 Views

What do 2 dots above a vowel mean?

In french, the combination of certain vowels changes the phonetic of them. Clear examples are O and U that together are pronounced [u] or A and U making and O sound together. But in some cases you might want...
EA
Answered by Eric A. • French tutor
2452 Views