Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

for what value of n are the nth terms of the following two APs the same (a) 13,19,25,.... (b)69,68,67....? also find this term.
Asked by prasadnidhi | 01 Nov, 2010, 12:00: AM
answered-by-expert Expert Answer
For the first AP a = 13, d = 6 for the other AP a' = 69 d' = -1
Thus nth term of first AP
an = a + (n-1)d = 13 + (n-1)(6) = 7 + 6n
an' = a' + (n-1)d' = 69 + (n-1)(-1) = 70-n
7 + 6n = 70 - n
7n = 63
n = 9
Answered by | 03 Nov, 2010, 09:23: AM
CBSE 10 - Maths
Asked by deepikaselvam2009 | 20 Feb, 2024, 08:57: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by keshavsinghalhapur | 16 Jan, 2024, 08:46: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by keshavsinghalhapur | 15 Jan, 2024, 10:56: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by durgauikey7000 | 08 Dec, 2023, 08:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by shaikhyakub9946 | 30 Nov, 2023, 11:50: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by prassanna.j | 13 Nov, 2023, 11:24: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by prassanna.j | 13 Nov, 2023, 11:23: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by latayadav23 | 17 Oct, 2023, 08:39: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×