Hey can someone help me figure this out plz

If Y is a continuous random variable and m is the median of the distribution, then m is such that P(Y≤m)=P(Y≥m)=0.5. If Y1, Y2,...,Yn are independent, exponentially distributed random variables with mean β and median m then Y(n)= max(Y1, Y2,...,Yn) does not have an exponential distribution. Use the general form of FY(n)(y) to show that P(Y(n)>m)= 1-(0.5)^n.

Thanks alot !!