In performance testing of missiles, one of the variables of interest is the distance between the target location and the actual impact point. Let the target location be the origin of coordinates, and let the random variable X represent the east-west distance, while Y represents the north-south distance. Assuming X and Y are independent and each has the same probability density function, answer the following questions. Find P[Z>1/2] when Z = (X^2 + Y^2)^(1/2)