Write a matlab code for the following problem:

determine the number of terms necessary to approximate cosx to 8 significant figures using the maclaurin series approximation. use x=0.3pi

cosx=1−(x2/2)+(x4/4! )−(x6/6! )+(x8/8! )

Consider the usual algorithm to convert an infix expression to a postfix expression. suppose that you have read 10 input characters during a conversion and that the stack now contains these symbols: (5 points) | | | + | | ( | bottom |_*_| now, suppose that you read and process the 11th symbol of the input. draw the stack for the case where the 11th symbol is