Find the first three non-zero terms of the Maclaurin expansion of the function

Question 1) Find the first three non-zero terms of the Maclaurin expansion of the function

f(x)=e^-2x? (Simply the answers).

Question 2) Find the first three non-zero terms of the Maclaurin expansion of the function

f(x)=7cos5(pi)x (Type exact answer using Pi as needed and fractions for second and third term).

Question 3) Use series to approximate the value of the integral with an error of magnitude less than 10^-8, Integral from 0.27(upper) to 0 (lower) sinx/x dx=?. (Round to nine decimal places).

Question 4) Find the Maclaurin series for f(x)=5e^-x?.

Question 5) Find the Maclaurin series for f(x)=5/1+x?.

Question 6) Find the first three non-zero terms of the Maclaurin expansion of the function
f(x)=4e^7x?. (Simplify answers).