Question

Find the sum of n terms of the series
1x2+2x3+3x4+4x5+​

Answer 1

Answer:

70

Step-by-step explanation:

1×2+2×3+3×4+4×5+5×6= 70

Answer 2

Answer

I think something is missing in missing in this question.

Kindly recheck and send it again.

Thank you