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What are reflexes and how do they produce movement quickly?

A reflex occurs when movement is produced without conscious thought. They can therefore be described as autonomic and produce movement faster than voluntary movements (which do require conscious thought)....

Answered by Samuel W. • Biology tutor

2976 Views

How do I remember all the case studies?

Psychology involves a lot of memorisation, and how is anybody supposed to remember ALL of those case studies, the names of the psychologists involved, and the results? 'It's too much!' you may cry. Here's...

Answered by REBECCA B. • Psychology tutor

7236 Views

By expressing cos(2x) in terms of cos(x) find the exact value of the integral of cos(2x)/cos^2(x) between the bounds pi/4 and pi/3.

cos(2x)=cos²(x)-sin²(x)=2cos²(x)-1
Therefore:cos(2x)/cos²(x)=(2cos²(x)-1)/cos²(x)=2cos²(x)/cos²(x) - 1/cos

Answered by Hugo F. • Maths tutor

7830 Views

What is the basic Economic problem, and how does Economics as a discipline approach this?

The basic economic problem is usually defined as there being a situation of scarce resources but an unlimited or infinite number of wants and demands for these resources. Economics as a discipline seeks t...

Answered by Alexander M. • Economics tutor

2642 Views

How do I differentiate an expression of the form y = (ax+b)^n?

In order to differentiate this we need to use the chain rule- first let u = ax + b. Then differentiating, du/dx = a. By substituting into the original expression, we can obtain y = u^n. Differentiating th...

Answered by Sam C. • Maths tutor

11586 Views