the ants go marching one by onehurrahhurrahthe ants go marching one by onehurrahhurrahthe ants go marching one by onethe little one stops to suck his thumband they all go marching down in the ground to get out of the rain boomboomboomthe ants go marching two by twohurrahhurrahthe ants go marching two by twohurrahhurrahthe ants go marching two by twothe little one stops to tie his shoeand they all go marching down in the ground to get out of the rain boomboomboom write definitions for these functionsspherearea(radiusreturns the surface area of sphere having the given radius spherevolume(radiusreturns the volume of sphere having the given radius use your functions to solve programming exercise from write definitions for the following two functionssumn(nreturns the sum of the first natural numbers sumncubes(nreturns the sum of the cubes of the first natural numbers then use these functions in program that prompts user for and prints out the sum of the first natural numbers and the sum of the cubes of the first natural numbers redo programming exercise from use two functions--one to compute the area of pizzaand one to compute cost per square inch write function that computes the area of triangle given the length of its three sides as parameters (see programming exercise from use your function to augment triangle py so that it also displays the area of the triangle write function to compute the nth fibonacci number use your function to solve programming exercise from solve programming exercise from using function nextguess(guessxthat returns the next guess