Question

plz answer correctly and i will mark as brainlist .....find the sum of n terms of an ap √2,√8,√18,√32........... .....​

Answer 1

Step-by-step explanation:

√2+√8+√18+√32+....n term

=√2+2√2+3√2+4√2.+.....n√2

=√2(1+2+3+4.+...n)

=√2[{n(n+1)}/2]