Question

for an Ap if an=3+4x then the value of d is​

Answer 1

An= 3 + 4x

a1 = 3 + 4x........ Put x= 1

= 3 + 4 * 1

= 3 + 4

a1 = 7

a2 = 3 + 4x.......... Put x = 2

= 3 + 4 * 2

= 3 + 8

a2 = 11

$d = a2 - a1$

d = 11 - 7

d = 4

$therefore \: d = 4$

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