Question

Choose the correct answer and fill up the following :- d=______________in the AP 1² , 5² , 7²​

Answer 1

Answer:

24

Step-by-step explanation:

they are in A.P

the common difference will be  difference of second number  and first number

25-1=24

Answer 2

Answer:

24

Step-by-step explanation:

d= 2nd term - 1st term or 3rd term - 2nd term.....and so on.

so, d = $5^{2} -1^{2}$ = 25-1 = 24

 also you can check,

    $7^{2} -5^{2}$ = 49-25= 24

d=24

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