Perform the following tasks:$1.$ Write a function called mylncArray that takes a number N as input and returns an array containing N elements: $1,2,3,...,$ N$.$ Use this function and N to construct a new array A$\mathrm{.}2.$ Write a function called myDecArray that takes a number N as input and returns an array containing N elements: N$,$ N$-1,$ N$-2,...,1.$ Usetnis tunction ana N to construct a new array D$\mathrm{.}3.$ Write a function called mySumArray that takes two arrays as input and returns their sum. Use this function and arrays A and B to construct a new array C$\mathrm{.}4.$ Write a function called myMultArray that takes an array as input and constructs a new array whose n$-$th entry is given by n plus n times the n$-$th element the input array. Use this function and the array C to constructa new array D$5.$ Construct E to be one more that the sum of all elements in D$,$ using the built$-$in function called 'sum'.