Question

the sum of first Q terms of an ap is 2 cube + 3 q square find d​

Answer 1

Answer:

here is the answer....

sum of first term =a

S1=2*1+3*1^2

=2+3=5

now,

sum of first two terms,

S2=2*2+3*2^2

=16

SECOND TERM=S2-S1

=16-5

=11

COMMON DIFFERENCE=11-5=6

hope it is correct....

Step-by-step explanation: