6. [-/0.29 Points] DETAILS SCALCET8 14.4.039. MY NOTES ASK Y If R is the total resistance of three resistors, connected in parallel, with resistances R1, R2, R3, then R1 RZ R3 If the resistances are measured in ohms as R1 = 25 0, R2 = 20 0, and R3 = 10 0, with a possible error of 0.5% in each case, estimate the maximum error in the calculated value of R. (Round your answer to three decimal places.) n Need Help? Read It Watch It 7. [-/0.34 Points] DETAILS SCALCET8 14.4.044. MY NOTES ASK Y Show that the function is differentiable by finding values of 1 and &2 that satisfy this definition. f ( x, y ) = xy - 52 Az = fla + Ax, b + Ay) - f(a, b) = (a + Ax) (b + Ay) - 5(b + Ay)2 - = ab + ady + bAx + 4xy - 562 - 10bay - 5(Ay)2 - ab+ Ay + bAx + AXAy - AyAy But fx(a, b) = and fy(a, b) = and so Az = fx(a, b)Ax + fy(a, b)Ay + AxAy - 5AyAy, which is the definition with $1 = Ay and E2 = -5Ax. Hence fis differentiable. Need Help? Read It