Answer:
10
Step-by-step explanation:
Summation of 3n + 2 from n = 1 to n = 14 = (3(1) + 2) + (3(2) + 2) + (3(3) + 2) + . . . + (3(14) + 2) = 5 + 8 + 11 + ... + 44 ia an arithmetic progression with first term (a) = 5, common difference (d) = 3 and last term (l) = 44 and n = 14
Sn = n/2(a + l) = 14/2(5 + 44) = 7(49) = 343
Therefore, the required summation is 343.
The first 4 terms are 2, 2/3, 2/9, and 2/27
I hope this was helpful, i haven't done sequences in a while
-3 is a negative number and 2 is a positive
Answer:
=-(3*3*3)
=-3
-3 is a rational number, thus
will be a rational number.