Question

A=1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64

Answer 1

A = 1 - 1/2 + 1/2 - 1/4 + 1/4 - 1/8 + 1/8 - 1/16 + 1/16 - 1/32 + 1/32 - 1/64

A = 1 - 1/64 

A = 63/64

Answer 2

A = 1/2 + 1/4 +1/8+ 1/16 +1/32 +1/64

A = 1- 1/2 + 1/2 - 1/4 + 1/4 - 1/8 + 1/8 - 1/16 + 1/16 - 1/32 + 1/32 - 1/64

A = 1 - 1/64

A = 63/64

Answer 3

A=1/2+1/4+1/8+1/16+1/32+1/64

A=32/64+16/64+8/64+4/64+2/64+1/64

A=32+16+8+4+2+1/64

A=63/64