Question

Prove that 2 power n +6×9 power n is divisible by 7 for any positive integer n​

Answer 1

Answer:

Reason 1

103 = 1 x 10 x 10 x 10  

102 = 1 x 10 x 10  

101 = 1 x 10  

100 = 1  

 

Reason 2

102 ÷ 102 = 102 - 2 = 100 = 1

Step-by-step explanation: