AB = 1.If degrees. degrees. (c) degrees. (b) 6.Find the exact value of each expr

Question

AB =

1.If degrees. degrees. (c) degrees. (b) 6.Find the exact value of each expression if defined; otherwise, input undefined. (a) (c) (b) . (a) 5.Evaluate the following expressions. Your answer must be an angle in radians and in the interval ; ; ; ; ; x in the triangle given in the graph = 4.Click on the graph to view a larger graph For the given angle pi as 'pi' in your answer.) AB = BC = , find any missing angles or sides. Give your answer to at least 3 decimal digits. 3.) A circular arc of length 19 feet subtends a central angle of 15 degrees. Find the radius of the circle in feet. (Note: You can enter and the angle If , 2.Refer to the right triangle in the figure. Click on the picture to see it more clearly. , then

Explanation / Answer

1)    f'(x) = 0
2)   Beta=35
   BC= 4 x sin 65    = 3.625
   AB= 4 x cos 65    = 1.690
3)   Length of arc    = 2 x pi x r x angle/360
               19   = 2 x pi x r x 15/360
               r    = (19 x 360)/ (2 x pi x 15)
                   = 72.611ft
4)   hyp2 = 22+32
= 13
hyp = sqRoot(13) = 3.606

sin x    =    2/sqRoot(13) = 0.555
cos x    =    3/sqRoot(13) = 0.832
tan x    =   2/3        = 0.667
cot x    =    3/2        = 1.5
cosec x =   sqRoot(13)/2 = 1.303
sec x    =    sqRoot(13)/3 = 1.202

5)
   a) -pi/3
   b) -pi/6
   c) pi/6

6)
   a) 30
   b) -30
   c) undefined -1<=sin x <= 1

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