Sequences And Series

Question 1

What do you do in binomial expansion if the first term in the bracket is not one and power is not above 1?

Answer 1

Take it out the brackets

(a+b)^n=a^n(1+b/a)^n

Question 2

What is an arithmetic sequence?

Answer 2

A sequence that has a common difference

Question 3

What is a geometric sequence?

Answer 3

A sequence with a common ratio

Question 4

What the difference between a Cartesian and parametric equation?

Answer 4

Cartesian shows direct relationship between x and y, parametric uses a 3rd variable to define

Question 5

What is the parametric equation for a circle with radius r and centre (a,b)

Answer 5

X=a+rcos@

Y=b+rsin@