Question

A=12. D=6. N=? An=96​

Answer 1

Answer:

Step-by-step explanation:

1) 2, 4, 6, 8,....

The given sequence is an A.P.

Common difference = Second term − First term

                                = 4 − 2

                                = 2

(2) 2, 52, 3, 73 ,....

The given sequence is not an A.P.

(3) –10, –6, –2, 2...

The given sequence is an A.P.

Common difference = Second term − First term

                                = (−6) − (−10)

                                = 4

Answer 2

Answer:

a = 12

d = 6

an = 96

n = ?

an = a + (n-1) d

96 = 12 + (n-1) 6

$\frac{84}{6} = n - 1$

14+ 1 = n

n = 15