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- Plot the vector field F = (y,sinx) using the viewing window (-2pi,2pi)x(-2pi,2pi).The nabla formulas corresponding to the derivative rule of income are gVf+fVg, (Vƒ). F + f(V.F), (Vf) x F + f(V x F). ▼(fg) V. (fF) ▼ x (fF) = = = Justify the middle one (e.g. in the case of n = 3). Hint: The coordinate functions of the vector field fF are fF₁ etcShow that V x (V.f) = 0 for any vector field f.
- Represent the plane curve by a vector-valued function. x2 /16−y2/ 4= 1Suppose ƒ is differentiable at (9, 9), ∇ƒ(9, 9) = ⟨3, 1⟩, and w = (1, -1). Compute the directional derivative of ƒ at ⟨9, 9⟩ in the direction of the vector w.Evaluate along the curve y=x2 from (-1,1) to (2,4). First find the vector valued function r(t) defining the curve.
- Let u(t) = 21'i+ (-1)j-8k. Compute the derivative of the following function. (11 +7t) u(t) Select the corect choice below and fill in the answer box(es) to complete your choice. O A. The derivative is the scalar function O B. The derivative is the vector-valued function Di+ i+ k. Click to select and enter your answer(s) and then click Check AnswerSuppose F = = (2y, -2x). Complete the following table of values of F. y = 1 y=0 y = -1 x = -1 B Values of F x = 0 x = 1 Using your table of values as a starting point, sketch this vector field on a piece of paper for -2 ≤ x ≤ 2 and -2 ≤ y ≤ 2.