Question

Find the sum of the following arithmetic progression: 1) 50, 46, 42,...to 10 terms 2) 1,3,5,7,...to 12 terms 3) 3 ,9/2, 6,15/2,...to 25 terms 4) a + b, a-b, a-3b, ...22 terms 5) −/+,3−2/+,5−3/+,...to n terms 6) -26, -24, -22,...to 36 terms. 7) 5,2,-1,-4,-7,.... to n terms

Answer 1

Answer:

Kisi aur phucho yaar.. Mujhe nai pata