mjimenez40 mjimenez40 24-03-2020 Mathematics contestada a1=−4 ai=(ai−1)⋅2 Find the sum of the first 50 terms in the sequence. A. −5.07⋅10^29 B. −4.50⋅10^15 C. −2.25⋅10^15 D. −1.50⋅10^15 PLEASE GIVE GOOD EXPLANATION