Question

The three consecutive terms of an AP are 2x+3,5x+1,6x+3 find x​

Answer 1

Answer:

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x=√15/2.....by substitution method

Answer 2

For the AP we know 2b=a+c

Here series is 2x+3,5x+1,6x+3

so,b=5x+1,a=2x+3,c=6x+3

2(5x+1) = 2x+3+6x+3

10x+2=8x+6

2x=4

x=2