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Concept explainers
Exercises 119-121 will help you prepare for the material covered in the next section.
Consider the triangle formed by
a. Use the magnitudes of the three vectors to write the Law of Cosines for the triangle shown in the figure:
b. Use the coordinates of the points shown in the figure to write algebraic expressions for
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Chapter 6 Solutions
EP PRECALCULUS-MYLABMATH+ETEXT ACCESS
- xp x+xarrow_forwardFor the given graph, determine the following. -3 12 УА 4 3 - -1 ° 1 2 3 x -1. -2- a. Determine for which values of a the lim f (x) exists but f is not continuous at x = a. a b. Determine for which values of a the function is continuous but not differentiable at x = a. aarrow_forwardUse the following graph of ƒ (x) to evaluate ƒ' (−1) and ƒ' (2). y +10+ 9 8 7 6 5 4 3 2 1- -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 x 3 4 0 8 9 10 -2 3 -4 5 -6 -7 -8 -9 -10- f'(-1)= f' (2)arrow_forward
- 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) = 2 = ;a=2 a. Slope: b. Equation of tangent line: yarrow_forwardFor 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_forward
- Find 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_forwardFor the following function f and real number a, find f' (a). f(x)=8x+6; a = −3 f' (a)arrow_forwardFind the slope of the secant line between the values 1 and 2 for the function y = f(x). Answer exactly or round to 2 decimal places. 2 f(x)= ; = x12, x24 2, x2 = 4 2x 1 Slope: Submit Questionarrow_forward
- answer a, b, and carrow_forwardA 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_forward
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