Top answers

Solve for x (where 0<x<360) 2sin^2(x) - sin(x) - 1 = 0

Factorise the equation (the equation is quadratic in sin(x) )2 sin 2 (x) - sin(x) - 1 = 0(2sin(x) + 1)(sin(x) - 1) = 0Work out the solutions to the quadratic equation2sin(x) +1 = 0 or sin(x) - 1 = 0sin(x) = ...
Answered by • Maths tutor
7611 Views

How do I structure a 40 mark essay answer?

The key things to remember in writing our essay are clarity, relevant case studies and having a clear line of argument throughout. To do so, we'll want to start by breaking down the given essay question. Usi...
CR
Answered by Chloe R. • Geography tutor
9229 Views

Explain the meaning of reciprocity in regards to caregiver-infant interactions. (2 marks)

Reciprocity refers to a two-way interction between the caregiver and baby, where they take turns in responding to each other. The interaction is sustained as they continuously elicit responses from each other.
YB
Answered by Yinka B. • Psychology tutor
8573 Views

How would you go about calculating inflation using CPI (consumer price index)

- The consumer price index is the official measure of inflation in the UK - 2 surveys are conducted. The first survey is the Living Costs and Food surveys which involves approx. 7000 households completing se...
Answered by • Economics tutor
2436 Views

What is the chain rule?

Up until now you may have been given functions like f(x)= 7x^3 +cos(x) and been told just to differentiate. What your teacher really meant was to differentiate with respect to x. The chain rule allows us to ...
JM
Answered by James M. • Maths tutor
3753 Views