PAPBPC1 they r mutually exclusive true or false PAU PBU PC1

Solution

P?A?+P?B?+P?C?=1. they r mutually exclusive. true or false?

False as it is not significe A\' U B\' U C\' = phi

P?A?U P?B?U P?C?=1. are they mutually exclusive. true or false?

True.