CALCULUS WITH APPLICATIONS
11th Edition
ISBN: 2818440028625
Author: Lial
Publisher: ELSEVIER
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Chapter T, Problem 23DT
To determine
The factor of the expression
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please do #48
43–46. Directions of change Consider the following functions f and
points P. Sketch the xy-plane showing P and the level curve through
P. Indicate (as in Figure 15.52) the directions of maximum increase,
maximum decrease, and no change for f.
■ 45. f(x, y) = x² + xy + y² + 7; P(−3, 3)
plese do #48
Chapter T Solutions
CALCULUS WITH APPLICATIONS
Ch. T - Prob. 1DTCh. T - Simplify .
Ch. T - Let x be the number of apples and y be the number...Ch. T - Let s be the number of students and p be the...Ch. T - Solve for k: 7k + 8 = –4(3 – k).
Ch. T - Solve for
Ch. T - Write in interval notation: -2 < x ≤ 5.
Ch. T - Using the variable x, write the following interval...Ch. T - Solve for y: 5(y – 2) + 1 ≤ 7y + 8.
Ch. T - Solve for .
Ch. T - Carry out the operations and simplify: (5y2 - 6y –...Ch. T - Multiply out and simplify (x2 – 2x + 3)(x + 1).
Ch. T - Multiply out and simplify (a – 2b)2.
Ch. T - Factor 3pq + 6p2q + 9pq2.
Ch. T - Prob. 15DTCh. T - Perform the operation and simplify: .
Ch. T - Perform the operation and simplify:.
Ch. T - Solve for x: 3x2 + 4x = 1.
Ch. T - Solve for z: .
Ch. T - Simplify
Ch. T - Simplify
Ch. T - Simplify as a single term without negative...Ch. T - Prob. 23DTCh. T - Simplify
Ch. T - Rationalize the denominator: .
Ch. T - Simplify .
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- 43-46. Directions of change Consider the following functions f and points P. Sketch the xy-plane showing P and the level curve through P. Indicate (as in Figure 15.52) the directions of maximum increase, maximum decrease, and no change for f. T 45. f(x, y) = x² + xy + y² + 7; P(−3, 3)arrow_forwardSolve the differential equation by variation of parameters 3x2y" + 7xy' + y = x2 - xarrow_forward2 x² + 9 d x 1 x +9 dxarrow_forward
- DO these math problems without ai, show the solutions as well. and how you solved it. and could you do it with in the time spandarrow_forwardThe Cartesian coordinates of a point are given. (a) (-8, 8) (i) Find polar coordinates (r, 0) of the point, where r > 0 and 0 ≤ 0 0 and 0 ≤ 0 < 2π. (1, 0) = (r. = ([ (ii) Find polar coordinates (r, 8) of the point, where r < 0 and 0 ≤ 0 < 2π. (5, 6) = =([arrow_forwardThe Cartesian coordinates of a point are given. (a) (4,-4) (i) Find polar coordinates (r, e) of the point, where r > 0 and 0 0 and 0 < 0 < 2π. (r, 6) = X 7 (ii) Find polar coordinates (r, 8) of the point, where r < 0 and 0 0 < 2π. (r, 0) = Xarrow_forward
- r>0 (r, 0) = T 0 and one with r 0 2 (c) (9,-17) 3 (r, 8) (r, 8) r> 0 r<0 (r, 0) = (r, 8) = X X X x x Warrow_forward74. Geometry of implicit differentiation Suppose x and y are related 0. Interpret the solution of this equa- by the equation F(x, y) = tion as the set of points (x, y) that lie on the intersection of the F(x, y) with the xy-plane (z = 0). surface Z = a. Make a sketch of a surface and its intersection with the xy-plane. Give a geometric interpretation of the result that dy dx = Fx F χ y b. Explain geometrically what happens at points where F = 0. yarrow_forwardExample 3.2. Solve the following boundary value problem by ADM (Adomian decomposition) method with the boundary conditions მი მი z- = 2x²+3 дг Əz w(x, 0) = x² - 3x, θω (x, 0) = i(2x+3). ayarrow_forward
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