Question

which term of AP 23,44,65,86....is 212?​

Answer 1

Answer:

a=23,d=21,an=212

Step-by-step explanation:

formula=an=a+(n-1)d

212=23+(n-1)21

189=(n-1)21

189/21=(n-1)

9=(n-1)

n=10

thanks

Answer 2

Given that,

which term of AP 23,44,65,86....is 212?

Let,

• a1 = 23
• a2 = 44

Common difference (d) = a2 - a1 = 44 - 23 = 21

Now we have,

• a = 23
• d = 21
• an = 212
• n = ?

↪ an = a + (n - 1)d

➡ 212 = 23 + (n - 1)(21)

➡ 212 = 23 + 21n - 21

➡ 212 = 2 + 21n

➡ 212 - 2 = 21n

➡ 21n = 210

➡ n = 210/21

➡ n = 10

∴ 10th term of AP 23,44,65,86....is 212

Step-by-step explanation:

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