Multiply to find the exact answer. Express the answer as a whole or mixed number when possible and simplify.1 ?  ? 

A.
B.
C.
D.


Answer: C

Mathematics

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Simplify the expression. The result will be one of sin x, cos x, tan x, cot x, sec x, csc x.tan x(csc x - sin x)

A. csc x B. tan x C. sec x D. cos x

Mathematics

Solve the equation and state the solution set. -  = 

A. {38}
B. {19}
C. {-19}
D. {}

Mathematics

Provide an appropriate response.Identify which of the following properties apply to the graph of   I. The domain is all real numbers except integer multiples of ?.  II. The range is (-?, -1] ? [1, ?).  III. The equations of the vertical asymptotes are , where n is an odd integer.  IV. The x-intercepts are of the form  where n is an integer.

A. II and IV B. I and III C. I only D. III and IV

Mathematics

What are the dimensions of a closed rectangular box that has a square cross section, a capacity of 127 in.3 and is constructed using the least amount of material? ?

A.
B. ?
C. ?
D. ?
E. ?

Mathematics