A drug loses decayrate percent of its potency every month. Also, a drug is considered expired if it loses more than 50% potency. Your goal is to write a boolean function IsExpired(months, decayrate) that returns True if the drug has expired and False if it has not. Please note that use of while loops is not allowed in writing the solution to this problem. Example 1: IsExpired(10,10) should return True. Explanation: The drug loses 10% potency every month. After 1st month the potency is 90%, after 2nd month its 81%. In this way, after 7th month the potency is 47.83%. Example 2: IsExpired(15,4) should return False. Explanation: After 15th month the drug has 54.21% potency.