Thanks Jieheng.

Please help to solve sec one math. Thanks!


1) The sum of the first 8 terms of a certain arithmetical progression is 56 and the sum of the next 12 terms is 204. Calculate the values of the first term and the common difference.

Please show the working in details

Thanks JieHeng! Your help is much appreciated.

Hi, ps help to solve sec one math


1) the sum of first n terms of a series is (n^2 + 2n) for all values of n. find the first three terms of the series.

2. Find the sum of the even numbers from 50 to 100 inclusive.

3. Write down the nth term and the sum of the first n terms of an arithmetic progression whose first term is a and whose common difference is d. Use these formulae to find the sum of all the numbers between 100 and 200 that are divisible by 7.

4. In the arithmetic progression whose first term is -27,the tenth term is equal to the sum of the first nine terms. Calculate the common difference.

5. The sum of the first 6 terms of an arithmetical progression is 55.5 and the sum of the next 6 terms is 145.5. Find the common difference and first term.


Thanks . Ps show me the working.

Hi,u can buy Casco express math tutor. I brought it for my girl when she was sec one na. It is a good ass math for them to practise.But quite boring cause every topics have too many exercises to practise.

Noted with thanks Sahm Tam.

Can anyone recommend sec one IP math assessment book ? I cannot find any IP math assessment book in the popular . Thanks.

Thanks jieheng

Solve xy= -5

3x-2y= -11

Thanks

I had changed q 2 . Ps show me the working . Thanks.