Let F(x) = 4 - 2x Use a Riemann Sum

question 307

Multiple Choice

Let f(x) = 4 - 2x Use a Riemann sum with four subintervals of equal length (n = 5) to approximate the area of R (under the graph of f on the interval [0, 2]) . Choose the representative points to be the left end points of the subintervals.
Repeat previous part with eight subintervals of equal length (n = 10) .
Compare the approximations obtained in previous parts with the exact area (4 sq units) . Do the approximations improve with larger n?

• A) 4.4 sq units; 4.8 sq units; no
• B) 4.8 sq units; 4.4 sq units; yes
• C) 4.4 sq units; 4.8 sq units; yes
• D) 4.8 sq units; 4.4 sq units; no

Understand the principles of electronic overload protection and its adjustable settings.

Comprehend the relationship between motor load current, the heating effects, and the operation of overload protection units.

Learn the procedural steps and best practices for ensuring adequate motor protection.

Distinguish the differences in how various types of overload units protect motors.

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