You are Here: Home >< Maths

# a soul destroying maths question.SOUL DESTORYING, I TELL YOU watch

1. he first three terms of an arithmetic series are (k+2),(2k+3),(4k-2)

Find the value of the constant k

Now, i've tried very hard to think of ways to solve this; but none of them have worked. The markscheme tells me the answer is 6, but i don't understand how to get there. Please help.
2. (Original post by ZiggyStarDust_)
he first three terms of an arithmetic series are (k+2),(2k+3),(4k-2)

Find the value of the constant k

Now, i've tried very hard to think of ways to solve this; but none of them have worked. The markscheme tells me the answer is 6, but i don't understand how to get there. Please help.
In arithmetic sequences there is a difference d between each term in the sequence.
So
3. (Original post by ZiggyStarDust_)
he first three terms of an arithmetic series are (k+2),(2k+3),(4k-2)

Find the value of the constant k

Now, i've tried very hard to think of ways to solve this; but none of them have worked. The markscheme tells me the answer is 6, but i don't understand how to get there. Please help.
U3 - U2 = U2 - U1

Therefore: (4k-2) - (2k+3) = (2k+3) - (k+2)

Solve for k
4. (Original post by Kvothe the Arcane)
In arithmetic sequences there is a difference d between each term in the sequence.
So
oh my god, thank you

thank you so much

THANK YOU
5. "Soul destroying" eh?

### Related university courses

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: January 14, 2017
Today on TSR

### Exam Jam 2018

Join thousands of students this half term

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams