3. Pascal's triangle is a number triangle with numbers arranged in staggered rows such that n! r!(nr)! This equation is the equation for a binomial coefficient. You can build Pascal's triangle by adding the two numbers that are diagonally above a number in the triangle. An example of Pascal's triangle is shown below. 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 anr == Write a program that prints out Pascal's triangle. Your program should accept a parameter that tells how many rows of the triangle to print. Submit your code as your answer in a PDF.