For the pair of vectors, find ?,  and 

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? 

?, 

? 

?

? 

 

? 





What will be an ideal response?

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?, , 

Mathematics

The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = -4 + 11 cos tFind the body's acceleration at time t = ?/3 sec.

A.  m/sec²
B. -  m/sec²
C.  m/sec²
D. -  m/sec²

Plot the point in the rectangular coordinate system.(-4, 3) 

A.

B.

C.

D.

Find all solutions of the equation in the interval [0, 2?). Round the solution to four decimal places.cot x = -2

A. {2.6779} B. {3.6052, 5.8195} C. {2.6779, 5.8195} D. {0.4636, 2.6779}

Establish the identity. = cos(2?)

What will be an ideal response?