Top answers

What is political apathy?

Political apathy is generated through feelings of disinterest or indifference towards politics and political activities. This includes civic responsibility, civic engagement, and participation in electoral p...
LB
Answered by Lucien B. • Politics tutor
72626 Views

How does a vaccine lead to the production of antibodies and why does this provide immunity?

Vaccines are designed so that they contain antigens - for example viral antigens from the virus we wish to protect against. When these are injected they are recognised as foreign by white blood cells called ...
EJ
Answered by Emily J. • Biology tutor
14394 Views

If photons are little particles emitted by atoms, where were they before they got emitted?

Eisntein showed that in his theory of relativity that energy and mass were no longer conserved, as they are in Newton's theory. This completely changes how we see particles. They are no longer fundamental bu...
US
Answered by Uther S. • Physics tutor
2609 Views

How do you prove the 1^2 +2^2+.....+n^2 = n/6 (n+1) (2n+1) by induction?

There are three simple steps to prove anything by induction. Step 1: When n=1 1 2 =1 then: 1/6 x 1x (1+1) x (2+1) =1x2x3/6 =1 Therefore it is true for n=1 Step 2: Assume it is true for n=k so, 1 2 + 2 2 +......
VI
Answered by Vaisaalii I. • Maths tutor
5294 Views

Express the following as a partial fraction: (4x^2+12x+9) / (x^2+3x+2) .

We first notice that the degree of the numerator is the same as the degree of the denominator so we have an improper fraction which we need to separate into an integer and a proper fraction before we can exp...
AP
Answered by Antonia P. • Maths tutor
5774 Views