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- Sketch the direction field of the DE y'=2x+y. (Plot 9 or more points) Then sketch approximate solution that passes through y(1)=1Find f if ∇f = 4xy i + (2x^2 + 8y) jLet 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 Answer
- Explain how you could verify | ze" dæ = xe² – e" + C O Take the derivative of the integrand. If it matches the right hand side, then this equation is correct. O Use u-substitution to find the antiderivative on the left. O Take the derivative of the right hand side. If it matches the integrand, then this equation is correct.Find the approximation for the Green's function of the one-dimensional acoustic wave equation in the case where velocity is given by: c(x) = aebx , where a and b are real numbers and a > 0. Analyze each case, b 0, in detail.Let u(t) = 9t'i+ (² -1)j-6k and v(t)= e'i+5 ej- e k Compute the derivative of the following function. u(t) - v(t) Select the correct choice below and fill in the answer box(es) to complete your choice. O A. The derivative is the vector-valued function i+ k. O B. The derivative is the scalar function Click to select and enter your answer(s) and then click Check Answer. All parts showing Clear All OK earch
- How do I parametrize to get r1(x) and r2(x).Let u(t) = 2t'i+ (P -7)j-8k and v(t) = e'i+3 ej- ek. Compute the derivative of the following function. 3t L u(t) • v(t) Select the correct choice below and fill in the answer box(es) to complete your choice. O A. The derivative is the scalar function 訓 這 O B. The derivative is the vector-valued function (i+ (Dj+ ( k.Consider a particle moving along a curve so that it is at position f(t) = (2+³, 2t²) at time t. Then the particle is moving parallel to (1, -2) at time t at the point when the direction of motion is =