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Mid 1-07 Sol

# Mid 1-07 Sol - Practice Midterm

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\{rH 140 rest r - S O(t .hOt n 1. (2 pts.) (nrultiple-choice question) Find the exact value of the expression , n , ' ( r i n ' ( ; ) ) Select the correct answer. A) rl2 B) rl'/3 C) vtrl2 D) o E) undefined Write the letter(capital) of the answer iu this box NW e = m"-1 (!) =) e=Vb twt4/6= #o=h /ltn g = L/z .tnor 0 = 7 A' tu'lr=r {F, {3 _{i '[l 2. (3 pts.) Express the following as a single logarithm: lrr(rr - 1) + In(:r + 1) - 2ln r 1n (r3-r) - -a4x.) = ,1A4 ( x"-t\ \ F l 3. (4 pts.) Find a fornrula for the inverse function,f-t of f (:r): L4 = XtL v - Lx+ L 2X{ #/ =*+ 4. =) l= LA 2y-t :) 2r7 -x =.{ -fl r - L 1 ,., -L 1 ,n4 ( ry) ? : L 1 . - * r(71 = 6t ry 44 -7 (x) = = ) f

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N{TH 140 Test I . (2 pts.) (multiple-choice question) Find the domain of the function f ("): {i - !T- Select the correctanswer. A) re [0,oo) B) re (-oo,0] C) r e (0,9) D) a; e [0,9] E) r: (-oo,9l Write the letter(capital) of the answer in this box fR e K fo:*> 6, -t x Dawra*n : . +- 1 Xe lorgl o q ,[l 72rc % c'tlehod l- (4 pts.) Find the following limit. , . ' " - 4 I l f l - r-2 l.r' - 2rl If the limit does not exist. explain whv. (x- z) k+z) -4't.u 2(+ z' l?Ll lx -zl 4'u-- x+z- (x-z) (x+z) x Cf*-"1) .= 4u"- K: z- Mefttd.z \ Z r ' 4 * ?
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