how to find the first negative term of a given A.P? both the value of the term and its n value.
Asked by | 7th Jun, 2013, 09:47: PM
Any general term of the AP is given by a +(n-1)d
And so, for the first negative term, you need to find the least value of n such that a +(n-1)d <0
Now, if you know the value of a and d for the AP, you can substitute them in the above equation and find the value of n which will satisfy the inequality.
Now, that will give you the n value and that can be substituted back into a +(n-1)d to give the value of the term.
Answered by | 8th Jun, 2013, 07:17: PM
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Verify mobile number
Enter the OTP sent to your number