" 6."3^(4n+2)+5^(2n+1)" is a multiple of "14

n(n+1)(n+5) is a multiple 3.

Show that: 2^(4n)-2^n(7n+1) is some multiple of the square of 14, where n is a positive integer.

Show that: 2^(4n)-2^n(7n+1) is some multiple of the square of 14, where n is a positive integer.

The number of ordered pairs (m,n), where m, n in {1,2,3, …..,50}, such that 6^(m)+9^(n) is a multiple of 5 is -

The number of ordered pairs (m,n) where m , n in {1,2,3,…,50} , such that 6^(m)+9^(n) is a multiple of 5 is

The number of ordered pairs (m,n) where m , n in {1,2,3,…,50} , such that 6^(m)+9^(n) is a multiple of 5 is

The number of ordered pairs (m,n) where m , n in {1,2,3,…,50} , such that 6^(m)+9^(n) is a multiple of 5 is

The number of ordered pairs (m,n) where m , n in {1,2,3,…,50} , such that 6^(m)+9^(n) is a multiple of 5 is