Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = 
, 
< ? < 2?Find sin(2?).
A. 
B. - 
C. 
D. - 
Answer: D
You might also like to view...
Find the limit and determine if the function is continuous at the point being approached.
cos(3x - cos 3x)
A. does not exist; no B. 0; yes C. does not exist; yes D. 0; no
Find the polynomial of lowest degree that will approximate F(x) throughout the given interval with an error of magnitude less than than 10-3.F(x) = 
, [0, 0.5]
A. x - 
+ 
- 
B. x + 
+ 
+ 
C. x - 
+ 
- 
D. x - 
+ 
- 
Determine whether a linear or quadratic function would be a more appropriate model for the graphed data. If linear, tell whether the slope should be positive or negative. If quadratic, decide whether the coefficient 
of x2 should be positive or negative. DENTAL FLOSS USE 
Years since 1990
A. Linear; positive B. Quadratic; positive C. Linear; negative D. Quadratic; negative
Write an equation for a function whose graph fits the given description.The graph of f(x) = x2 is shifted 3 units to the left. This graph is then vertically shrunk by a factor of 
and reflected across the x-axis. Finally, the graph is shifted 7 units downward.
A. y = - 
(x - 3)2 + 7
B. y = 
(x - 3)2 - 7
C. y = - 
(x - 3)2 - 7
D. y = - 
(x + 3)2 - 7