MTH 140 Midterm: MTH140 – F2016 Midterm 1 (Solution)
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Mth 140 midterm 1 - (solutions) (multiple choice question) consider the function g(x) = 3x and let f be a one- to-one function satisfying f ( 6) = 4 and f (4) = 3. Then (f g) 1(4) is equal: 4, none of these to, 1, 2, 6. C (multiple choice question) if cot = 3 and . 2 , then sin is equal to: 2 < < 3 : 1 10, none of these. 3. (multiple choice question) the domain of the function f (x) = the set: 1 + ln x is: [1, , (1, ) Write the (capital) letter of the answer in this box. Only the answer in the box will be marked. Consider the function if x < 0 if x 0 (a) sketch the function f (x). Yes, f is one-to-one since it passes the horizontal line test. (b) find a formula for the inverse function f 1(x).
