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Exercises 28-35 relate to inhabitants of an island on which there are three kinds of people: knights who always tell the truth, knaves who always lie, and spies (called normals by Smullyan [Sm78]) who can either lie or tell the truth. You encounter three people,A,B, andC. You know one of these people is a knight, one is a knave, and one is a spy. Each of the three people knows the type of person each of other two is. For each of these situations, if possible, determine whether there is a unique solution and determine who the knave, and spy are. When there is no unique solution, list all possible solutions or state that there are no solutions.
33.Asays "I am the knight,"Bsays "I am the knight," andCsays "I am the knight."
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Chapter 1 Solutions
DISCRETE MATHEMATICS+ITS APPL. (LL)-W/A
- For the following function f and real number a, a. find the slope of the tangent line mtan = f' (a), and b. find the equation of the tangent line to f at x = a. f(x) = 2x² + 3x; a = 2 a. Slope: b. Equation of tangent line: yarrow_forwardFor the following function f and real number a, find f' (a). f(x) = = √x+4; a = 0 f' (a)arrow_forwardFind the slope of the secant line between the values x₁ and x2 for the function y = f (x). Answer exactly or round to 2 decimal places. f(x) = √√x x7; x₁ = 11, x2 = 23 Slope:arrow_forward
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- A population of muffles (a feathery species unrelated to tribbles) begins with 30 animals and has 100 animals after 36 hours.arrow_forwardA population of muffles (a feathery species unrelated to tribbles) begins with 30 animals and has 100 animals after 36 hours. 1. Find a formula describing the growth of the muffle population (4 points). Round any decimals to five decimal places.arrow_forwardFind the radius of circle carrow_forward
- 6 + 3 ² 3679 a 2 च 2 Find the value of x, round to the nearest tenth. 7. 360 L 173² 2 = 7.1 7x-20 8. Q 9 T 9 P 3 360 4 3x x = 3.1 S 34 7+ 7 10. CD = CB, GQ = x +5, EQ = 3x - 6. G LU E B x+5=3x-6 -S-S x = 3x-11 3-3 4A 6.5arrow_forwardFind the sample space. Sunscreen SPF 10, 15, 30, 45, 50 Type Lotion, Spray, Gelarrow_forwardThe graphs of the function F (left, in blue) and G (right, in red) are below. Answer the following questions. F'(1) G'(1) F'(6) G'(6)arrow_forward
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