Question

si b)2 supra 255 +4 supra255 +6 supra 255+.....100supra 255​

Answer 1

a)

1/946 + 2/946 + .. + 43/946 =

= (1 + 2 + .. + 43)/946

= (43×44 : 2)/946

= (43×22)/946

= 946/946

= 1

b)

2/255 + 4/255 + .. + 100/255 =

= (2 + 4 + .. + 100)/255

= 2(1 + 2 + .. +50)/255

= (2×50×51 : 2)/255

= 50×51/255

= 2550/255

= 10