Posted by **arzam** on Saturday, November 9, 2013 at 3:06am.

1.(A)(i)Show that 2+4+6+8+..+2n=n(n+1).

(ii)Find the sum of the first 200 even numbers.

(iii)Find the sum of the first 200 odd numbers.

(B)(i)Use the formula at the beginning of the question to find the sum of the first 2n natural numbers.

(ii)Find a formula, in its simplest form, for 1+3+5+7+9+...+(2n-1)

## Answer this Question

## Related Questions

- SUMS? - what is the sum of the first towo odd numbers? what s the sum of the ...
- Math riddle - nine odd numbers have a sum of 243.find the sum of the first and ...
- math - The sum of the first 5 natural numbers is 15 or (5)(6)/2. The sum of the ...
- arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...
- arithmetic - 1. The first and last term of an A.P are, a and l respectively, ...
- Math riddle - nine odd numbers have a sum of 243.find the sum of the first and ...
- Geometry - CounterExamples and Inductive Reasoning and Conjectures? Make a ...
- Math - Find the sum of the first 35 consecutive odd numbers. What is the sum of ...
- Math 8th grade - I NEED THESE IN ALGEBRAIC EXPRESSION!! The larger of two sums ...
- Math 130 - Sum the first two odd numbers, then the first three, the first four...