Top answers

Expanding a quadratic equation (x-3)(x-2)=0

Focus on the left hand side of the equation: (x-3)(x-2) These are two factors, basically that (x-3) is a number, and (x-2) is another number. (x-2)(x-3) is just showing that you're multiplying these numbers ...
DW
Answered by Daniel W. • Maths tutor
6779 Views

Describe Milgram's obedience study

Milgram was interested in why so many people can carry out inhumane acts when instructed by someone in authority, in particular the Nazi soldiers in World War 2. He questioned whether people could be held ac...
DR
Answered by Dana R. • Psychology tutor
2633 Views

When do I use Sin, Cos and Tan?

Just remember SOH,CAH,TOA. It sounds like Sock-A-Toe-Ah. Quite strange but extremely effective. SOH means Sin=Opposite/Hypotenuse Cos=Adjacent/Hypotenuse Tan=Opposite/Adjacent The three letters in each abbre...
DC
Answered by Darren C. • Maths tutor
3633 Views

Can you explain the product rule when differentiating?

When differentiating the product of two functions, we need to use the product rule. The theory of it is: (fg(x))'=f'(x)g(x) + f(x)g'(x). This explanation is-differentiate the first function and leave the sec...
DC
Answered by Darren C. • Maths tutor
3733 Views

Make x the subject of the equation: 5x+1 = 2-4x

fist of all you rearrange the equation so you have the x in one side so the equation would look like this: 5x+4x = 1, then you add up the x´s and divide both sides by 9 so the solution would be x= 1/9
DA
Answered by Daniel A. • Maths tutor
3928 Views