Question

can anyone solve this by mathematical induction????

plz plz plz plz plz
solve this​

Answer 1

Answer:

This may help you gyzz

Thanks

Answer 2

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Given: - P(n) = 23n – 1 is divisible by 7.
P(0) =20 – 1 = 0; is divisible by 7.
P(1) = 23 – 1 = 7; is divisible by 7.
P(2) = 26 – 1 = 63; is divisible by 7.
P(3) = 29 – 1 = 512; is divisible by 7.
Let P(k) = 23k – 1 is divisible by 7;
➡23k – 1 = 7x.
➡P(k+1) = 23(k+1) – 1
➡23(7x + 1) – 1
➡56x + 7
= 7(8x + 1) ; is divisible by 7.
⇒ P(k+1) is true when P(k) is true.
∴ By mathematical Induction(n) = 23n – 1 is
divisible by7, for all natural numbers n.

HOPE IT HELPS YOU ✌✌✌✌✌