In Problems 1–18 use Definition 7.1.1 to find
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Chapter 7 Solutions
A First Course in Differential Equations with Modeling Applications (MindTap Course List)
- 4. If f(x, y)=In(2x + 3 e), then- aff axy for this function isarrow_forwardH.W.4: Find f(3) (4) if fw) = /xarrow_forward1.1 Let u(x; y) = 4(x2 - y2 ) - 5y. If f(x; y) = u(x; y) + iv(x; y) is an entire function, then v(x; y) = A. -8xy - 5xB. 8xy - 5x.C. 4y2 + 5x + 1.D. 8xy + 5x - 12e.E. None of the abovearrow_forward
- 1.4 For which values of a ∈ R is the functionf(x + iy) = (a2x - axy) + i(- ax2/2 + ay), an entire function?arrow_forward5. please answer asaparrow_forwardIn Problems 11–20, for the given functions f and g. find: (a) (f° g)(4) (b) (g•f)(2) (c) (fof)(1) (d) (g ° g)(0) \ 11. f(x) = 2x; g(x) = 3x² + 1 12. f(x) = 3x + 2; g(x) = 2x² – 1 1 13. f(x) = 4x² – 3; g(x) = 3 14. f(x) = 2x²; g(x) = 1 – 3x² 15. f(x) = Vx; 8(x) = 2x 16. f(x) = Vx + 1; g(x) = 3x %3D 1. 17. f(x) = |x|; g(x) = 18. f(x) = |x – 2|: g(x) x² + 2 2 x + 1 x² + 1 19. f(x) = 3 8(x) = Vĩ 20. f(x) = x³/2; g(x) = X + 1'arrow_forward
- In each of the following, determine whether y is a function of x, where x can be any real numbers. (1 – 4) 1. x+1 y = 2. y = (x+ 1)(x - 1) 3. y = x²+1 4. y =Vx+1 (b)arrow_forward1 12. f(x) = - X -+ 1 x+1arrow_forward4. Let function ƒ: R → R and function g: R → R be two functions for which f(g(x)) = x and g(f(x)) = x. Through some combination of pictures and/or words, explain the following: if f(a) is equal to b and ƒ' (a) is equal to m (where m is nonzero), then it follows that g′ (b) is equal toarrow_forward
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