Find the exact value of the indicated trigonometric function of ?.sin ? = 
, sec ? < 0Find cos ? and tan ?.
A. cos ? = - 
, tan ? = - 
B. cos ? = - 
, tan ? = - 
C. cos ? = - 
, tan ? = 
D. cos ? = 
, tan ? = 
Answer: A
Mathematics
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Find the first three terms of the Taylor series in x - a.sin x, a = 
A. 
- 
2 + 
3 - . . .
B. 
C. 
D. 
- 
2 + 
3 - . . .
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If a triangle has vertices of 
and 
then the area of the triangle is given by 
Find the area of the triangle with vertices at the given points.(1, -3) (1, 1) (4, 3)
A. 6 B. 2.5 C. 12 D. 5
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Evaluate.X ÷ YZ, for X = 
, Y = -9, and Z = 
A. - 
B. - 1
C. - 1
D. - 1
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Write a proportion that models the situation described. Then, solve the proportion for x.A rectangle has sides of 6 and 16. In a similar rectangle, the longer side is 80 and the shorter side is x.
A. 
= 
; x = 
B. 
= 
; x = 32
C. 
= 
; x = 30
D. 
= 
; x = 
Mathematics