Question: 10. Prove by mathematical induction. 4^3+4^4+4^5+?.+4^n= 4(4n-16)/3,for all integers n > = 3.​

1. 0.3 •4 is the same as 4 groups of 0.32. 7•0.8 is the same as 7 groups of 0.83. it increases by 0.5 every time, so 0.5x4 it increases by 0.9 every time, so 0.9x5. 0.9•12=10.86. 0.47•5=2.35i can finish the next ones in a separate post

Answers4.) -1/205.) -1/406.) -55/127.) -3/4