Question

Write the sequences and also find the kth term
Sk-k²-k​

Answer 1

Answer:

S1 = –2 = a1

S2 = –5 = a1 + a2

a2 = –5–a1

a2 = –5+2 = –3

so sequence is –2, –3, –4, –5,. .....

hence kth term = –k–1