Assignment:
Q1) If f(x) = x3 + 3x2 - 1, which of these is true?
I. f has domain all real numbers
II. f is a 1-1 function
III. f is onto the set of real numbers
a. Only one (could be any one
b. I and II
c. II and II
d. I and II
e. All three
Q2) Solve ex +2x =7
Q3) If log 3 = 1.4 and log5 = 3.6, find log 45
Q4) Find the period of f(x)= 3-2cos(3x + π)
Q5) Find csc(arctan 8/15)
Q6) For x €[0, 2π), solve: cos2x = cosx
Provide complete and step by step solution for the question and show calculations and use formulas.