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  1. Value of an odd function ●○○○○ 10 ptsThe function y=f(x)y=f(x) is an odd function, and f(x)=3x−1f(x)=3^x - 1 for x≥0x \geq 0. Find f(−2)f(-2).
  2. Odd function value at a positive point ●○○○○ 10 ptsGiven that f(x)f(x) is an odd function, and when x<0x < 0, f(x)=x3+x2f(x) = x^3 + x^2, find f(2)f(2).
  3. Value of an odd function shifted by a constant ●○○○○ 10 ptsGiven that f(x)f(x) is an odd function, g(x)=f(x)+6g(x)=f(x)+6, and g(−1)=3g(-1)=3. Find f(1)f(1).
  4. Value of even plus odd function ●●○○○ 20 ptsLet e(x)e(x) be an even function and let o(x)o(x) be an odd function such that e(x)+x2=o(x)e(x) + x^2 = o(x) for all xx. Let f(x)=e(x)+o(x)f(x) = e(x) + o(x). Find f(2)f(2).
  5. Even function on an interval ●●○○○ 20 ptsLet f(x)=x2+3ax+4f(x)=x^{2}+3ax+4 be defined on the interval b−3≤x≤2bb-3 \leq x \leq 2b. Given that ff is an even function on this interval, find the value of a−ba-b.
  6. Area of a parallelogram on a log graph ●●●○○ 50 ptsGiven points A(3,1)A(3,1) and B(53,2)B\left(\frac{5}{3},2\right). The four vertices of parallelogram ABCDABCD all lie on the graph of f(x)=log⁡2ax+bx−1f(x)=\log_{2}\frac{ax+b}{x-1}. Find the area of parallelogram ABCDABCD. Round to two decimal places.
  7. Roots of a symmetric odd function ●●●○○ 50 ptsLet y=f(x)y=f(x) be an odd function defined on R\mathbf{R} whose graph is symmetric about the line x=1x=1. When 0<x≤10<x\leq 1, f(x)=log⁡3xf(x)=\log_3 x. Find the sum of all real roots of the equation f(x)=−13+f(0)f(x)=-\frac{1}{3}+f(0) in the interval (0,10)(0,10).
  8. Sum of values of a shifted odd function ●●●○○ 50 ptsGiven that f(x)f(x) is an odd function defined on R\mathbb{R} and f(1)=1f(1) = 1. If the graph of f(x)f(x) is translated one unit to the right, the resulting graph is that of an even function. Find the sum f(1)+f(2)+f(3)+…+f(2009)f(1) + f(2) + f(3) + \ldots + f(2009).
  9. Real roots of a sine-power equation ●●●●○ 100 ptsFind the number of real roots of the equation sin⁡(2013πx)=x2013\sin(2013\pi x)=x^{2013}.