If 12+22+32+……..+n2=n(n+1) (2n+1) 612+22+32+……..+n2=n(n+1) (2n+1)6 Find the value of 52+62+72+…….+ 10252+62+72+……….+102

a) 330

b) 345

c) 355

d) 360

View Answer
Option – a.