--Vectors and matrices in "R"language--

1/a/Create a matrix of 30 numbers drawn from a random normal distribution.The matrix should have 6 rows and 5 columns.Assign the matrix to a variable"matrix1 and display the variable

b/From the matrix created in #a(above),display the following subsets:

----the last 3 rows and 1st,4th and 5th columns

-----even numbered rows and odd numbered columns

c/create a matrix of even numbers from 2 through 40 with 4 rows and 5 cols