Question

2square +4square+6square+8square+...........to n terms. find the sum of this series ?

Answer 1

4+16+64+........+n terms
n(n+1)/2
=4*4+1/2
=8

=16*16+1/2
257/2
=128

=64*64+1/2
=4096/2
=2048
=45
therefore the series are of like this
=8+45+128........+n terms