Question

First term of an arithmetic sequence is 5 and it's 10th term 50.Find it's 20th term​

Answer 1

Answer:

a=5

a+9d=50

d=50-5/9=5

20th term=a+19d

=5+19(5)

=5+95=100

Answer 2

Answer:

a=5

A10=50

a+9d=50

9d=45

d=5

a20=a+19d

5+95=100

Step-by-step explanation:

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