given that (12+22+32+.......102)=385 ,then the value of (22+42+62+.......+202) is
(12+22+32+.......102)=385
(22+42+62+.......+202)=22(12+22+ 32+.....+102 )
=4(385)
=1540
given that (12+22+32+.......102)=385 ,then the value of (22+42+62+.......+202) is
(12+22+32+.......102)=385
(22+42+62+.......+202)=22(12+22+ 32+.....+102 )
=4(385)
=1540