Evaluate the series described What is the value of a11 and what is the value of S11
a1=2.5, d=1.5, n=11

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !

the fist one is not equalvalent but i think th second one isand the third isnt definetly or the last one is i think. hope this !

step-by-step explanation:

let m = monomial

let t = trinomial

so, m times t = t.

monomial times a trinomial = another trinomial.

i think the answer is 90 hope this