Math, asked by satyanarayanrajukatl, 3 months ago

10. Find d if t9=23 a=7.

Answers

Answered by abcd809

3

Answer:

d = 2

Step-by-step explanation:

t9 = 23 = a + 8d

a + 8d = 23

7 + 8d = 23

8d = 23-7

8d = 16

d = 16/8

d = 2

Answered by punamc291

3

Step-by-step explanation:

here the value of d=2 as an=a+(n-1)d. where a=first term ,n=no of terms and d=common difference

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