Ageometric sequence has a first term of 4 and a second term of 12.
what is the common ratio ?

3

Step-by-step explanation:

Solution,Here,

In geometric sequence,

first term=4

second term=12

common ratio=?

We know that,

common ratio (r) = second term ÷ first term

=12÷4

=3

Hence, the required common ratio is 3.

i = 2 / - 5

step-by-step explanation:

evaluation of ( 2 - 4 ) ( p + q ) when p = 2 and q = 5 i, by putting values of p and q,