Find the length of the curve r(t) = 2ti+t²j+1ntk, 1?t?.


Mathematics

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Solve the problem.Use the Maclaurin expansion of cos x to find  .

A. 0
B.
C. 1
D. ?

Mathematics

Solve the problem.The distance from the downtown station to the last stop on a commuter railroad line is 28.6 miles. The distance between stops is about 2.2 miles. How many stops are there?

A. 12 stops B. 14 stops C. 13 stops D. 6 stops

Mathematics

Determine whether the given points are on the graph of the equation.y = 3x2; (4, 36)

A. Yes B. No

Mathematics

Perform the operations. ?   6 + 8 × 5 ?  

A. 49 B. 70 C. 46 D. 43 E. 40

Mathematics