Question

send answer for both questions

Answer 1

in sum no. 15 put value on n as 1 , ull know the 1st term----- (i)

then other n as 2 ull get sum of first 2 terms---- (ii)

subtract (ii) from(i)

ull get the 2nd term.... u can know the d and a then the sixteenth term will be a + 15 d

Answer is ------98

Answer 2

Answer:

Step-by-step explanation:

hope you get a rough idea of 16:::