Question

Find the 20th term of an arithmetic progression 2, 6, 10,​

Answer 1

Step-by-step explanation:

a=2

d=4

a20=a+19d

a20=2+19(4)

a20=2+76

a20=78

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Answer 2

Answer:

$78$

Step-by-step explanation:

from the question,

$a= 2\\\\d= 4$

$a_{20}= ?$

the formula for finding nth term is $a_{n} = a + (n-1)d$

$a_{20}= 2+(20-1)4\\ \\a_{20}= 2+76\\\\a_{20}= 78$

hence, the 20th term of an arithmetic progression is 78.