" किक्धि कीजिए बि "2,4,6,8,...2n" युणतखण्डों तक "=2^(n).ul(n)

Prove that 2.4.6.8..........2n<(n+1)^(n)*(n in N)

2*4*6*8*10*.....(2n-2)*2n

1 + i^(2n) + i^(4n) + i^(6n)

Prove that 2 + 4 + 6 + .... + 2n = n (n + 1)

Sum to n terms of 2+4+6+8 ..=

4+8+12+....+4n=2n(n+1)

2 . 4+4 . 6+6 . 8+... to n terms =

State, whether the following pairs of sets are equal or not: A={2,4,6,8} and B={2n : n in N " and " n le 4}

1.3+2.4+3.5+....+n(n+2)=(n(n+1)(2n+7))/(6)