Place your graphing calculator in parametric and degree modes. Set the window for Tmin=0, Tmax=360, Tstep=1, Xmin= -1.8, Xmax=1.8, Xscl=1, Ymin= -1.2, Ymax=1.2, Yscl=1. Set the functions to X1T=cos T, Y1T=sin T. Graph the circle of radius 1 on the screen. Use the trace feature to move a short distance around the circle.For what angle T is cos T ? 0.866? (Assume 0° ? T ? 90°.)
A. 0.866°
B. 28.65°
C. 30°
D. 60°
Answer: C
Mathematics
You might also like to view...
What part of the set of objects is shaded?
A. 
B. 
C. 
D. 
Mathematics
Decide whether or not the ordered pair is a solution to the equation.4x - 4y = 16; (2, 2)
A. Yes B. No
Mathematics
Find the slope and the y-intercept from the equation of the line. Sketch a graph of the equation.y = 2
A. m = 0; y-intercept = none
B. m = undefined; y-intercept = none
C. m = 0; y-intercept = 2
D. m = undefined; y-intercept = 2
Mathematics
Find the domain and range of the quadratic function whose graph is described.The maximum is -8 at x = 1
A. Domain: (-?, 1] Range: (-?, -8] B. Domain: (-?, ?) Range: (-?, 1] C. Domain: (-?, ?) Range: [-8, ?) D. Domain: (-?, ?) Range: (-?, -8]
Mathematics