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CALCULUS EARLY TRANSCENDENTALS W/ WILE
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- Let S be the surface defined by the vector function R(u, v) = (2e" sin v, 2e" cos v, u²+u), where u ER and v € [0,27]. Find an equation of the tangent plane to S at the point (1, √3,0).arrow_forwardLet f : R2 → R differentiable with f(a, b) = 5, ∂f/∂x (a, b) ≠ 0 and ∂f/∂y (a, b) ≠ 0. Let C be the intersection curve of the equation f(x, y) = 5 and u→ a nonzero vector tangent to C at the point (a, b). Detail whether each of the following statements is true or false: I. ∂f/du→ ≠ 0 necessarily. II. ∇f(a, b)·u→ = 0, necessarilyIII. If v→ is any vector and w→ = ∇f(a, b), then we necessarily have ∂f/dw→(a,b)≥ df/dv→(a,b). IV. r(t) = (a + df/dx (a,b) t, b - df/dy (a,b) t), t ∈ R, is the equation of the line normal to C at (a,b). V. If γ(t) = (x(t), y(t)), t ∈ I, where I is some open interval, is a parametrization of C and h(t) = f(γ(t)), then h'(α) = 0, where α ∈ I is such that γ(α) = (a, b).arrow_forwardLet S be the surface defined by the vector function R(u, v) = (u cos v, u – v, u sin v) with u ER and v E (0, 27]. %3D a. Find the equation of the tangent plane to S where (u, v) = (2, E). b. Determine the area of the portion of S where 0arrow_forwardAssume that u and u are continuously differentiable functions. Using Green's theorem, prove that Uz JE v|dA= [udv, Uy D where D is some domain enclosed by a simple closed curve C with positive orientation.arrow_forward42. Derivatives of triple scalar products a. Show that if u, v, and w are differentiable vector functions of t, then du v X w + u• dt dv X w + u•v X dt dw (u•v X w) dt dt b. Show that d'r dr? dr dr d'r dt dt r. dt dr? (Hint: Differentiate on the left and look for vectors whose products are zero.)arrow_forward2. Write an inline function that returns the value of the function .2 f(t, x) = sin(Va t) cos (Tx) and also works for vectors. Test your function by plotting it over the region [0, 5] × [0, 5]. 'arrow_forwardAnother derivative combination Let F = (f. g, h) and let u be a differentiable scalar-valued function. a. Take the dot product of F and the del operator; then apply the result to u to show that (F•V )u = (3 a + h az (F-V)u + g + g du + h b. Evaluate (F - V)(ry²z³) at (1, 1, 1), where F = (1, 1, 1).arrow_forwardLet x, y, z be vectors. Let f : R^2 → R be a function. Letr(t) be a vector-valued function. Determine if each of the following is a scalar, vector, or nonsense. No explanation is needed.a. x · yb. (x · y) × zc. [(x · y)z] × yd. r′(t)e. Duf(x, y)f. ∇xarrow_forwardWhich of the following best describes the surface with the vector equation r(u, v) = (cos u)i + (sin u)j + vk? %3D O A plane passing through the origin O A cylinder whose axis is the z-axis O A sphere of radius 1 centered at the origin O A right circular cone whose vertex is the originarrow_forwardFind an expression for a unit vector normal to the surface x = 10 sin (v) , y = u, z = 10 cos (v) at the image of a point (u, v) for 0arrow_forwardEvaluate the circulation of G = xyi + zj + 4yk around a square of side 4, centered at the origin, lying in the yz-plane, and oriented counterclockwise when viewed from the positive x-axis. Circulation = Jo F. dr =arrow_forwardarrow_back_iosarrow_forward_iosRecommended textbooks for you
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