Find the exact value of the trigonometric expression without the use of a calculator.If tan ? = , ? < ? <  and cos ? = -  < ? < ?, find the exact value of sin (? + ?).

A.
B.
C.
D.


Answer: B

Mathematics

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A. ?, for all x B. 2 C. 0 D. 1

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Find the exact value of y, or state that y is undefined.y = sin-1 

A.
B. - 
C.
D.

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Select a setting so that the given points will lie within the viewing rectangle.(0, 0), (40, 70), (90, -20)

A. X min = -10 X max = 100 X scl = 10 Y min = -10 Y max = 80 Y scl = 10 B. X min = 30 X max = 100 X scl = 10 Y min = -30 Y max = 80 Y scl = 10 C. X min = -30 X max = 80 X scl = 10 Y min = -10 Y max = 100 Y scl = 10 D. X min = -10 X max = 100 X scl = 10 Y min = -30 Y max = 80 Y scl = 10

Mathematics

Find all values of x for which the following is true: ?  sec x = -1 ? 

A.
B.
C.
D.
E.

Mathematics