Multiply and simplify.
? 
A. 
B. 
C. 
D. 120xy
Answer: A
Mathematics
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If r(t) is the position vector of a particle in the plane at time t, find the indicated vector.Find the velocity vector.r(t) = (cot t)i + (csc t)j
A. v = (-sec2 t)i - (tan t sec t)j B. v = (csc2 t)i + (cot t csc t)j C. v = (-csc2 t)i - (cot t csc t)j D. v = (sec2 t)i + (tan t sec t)j
Mathematics
Determine if the series converges absolutely, converges, or diverges.
A. converges conditionally B. diverges C. converges absolutely
Mathematics
Two dice are rolled. Find the probability of the event described.The score on the dice is no more than 7.
A. 
B. 
C. 
D. 
Mathematics
Classify the statement as either true or false. Do not use a calculator.
is between 9 and 10.
A. True B. False
Mathematics