1. Write a program that takes a double command-line argument t and prints the value of sin(2t) + sin(3t). 2. Write a program that takes two integer command-line arguments m and d and prints true if...

1. Write a program that takes a double command-line argument t and prints the value of sin(2t) + sin(3t).

2. Write a program that takes two integer command-line arguments m and d and prints true if day d of month m is between 3/20 and 6/20, false otherwise.