self Maths Puzzle

PROVE{1,W,W^2}IAS A GROUP W.R.T TO MULTIPLICATION

Read Solution (Total 0)

self Other Question

PROVE THAT{1,-1,I,-I}IS A GROUP W.R.T MULTIPLICATION AND ALSO FIND THEIR INVERSE A circular dartboard of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery?
a) 0.75
b) 1
c) 0.25
d) 0.5