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Magazine Problem 39
Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\cos 3$$
Problem 39
Use a scientific calculator to evaluate the trigonometric functions. Make sure the calculator is in DEGREE mode. Round to four decimal places. $$\cos 83^{\circ}$$
Problem 39
Sketch the graph of each of the given expressions. $$f(x)=\arctan x-\frac{\pi}{2}$$
Problem 39
Graph the given pair of functions on the same set of axes. Are the graphs of \(f\) and \(g\) identical or not? $$f(x)=\cos (x+\pi) ; g(x)=\cos (x)+\cos \pi$$
Problem 39
Graph the given pair of functions in the same window. Graph at least two cycles of each function, and describe the similarities and differences between the graphs. $$f(x)=\tan (x) ; f(x)=-\tan (x)$$
Problem 40
Use a scientific calculator to evaluate the giren trigonometric functions to four decimal places. $$\sin 1$$
Problem 40
Use a scientific calculator to evaluate the trigonometric functions. Make sure the calculator is in DEGREE mode. Round to four decimal places. $$\sin 78^{\circ}$$
Problem 40
Find the angle that is complementary to it. $$35^{\circ}$$
Problem 40
Graph the given pair of functions in the same window. Graph at least two cycles of each function, and describe the similarities and differences between the graphs. $$f(x)=\tan (3 x) ; f(x)=3 \tan (x)$$
Problem 40
Graph the given pair of functions on the same set of axes. Are the graphs of \(f\) and \(g\) identical or not? $$f(x)=\cos (x+\pi) ; g(x)=-\cos (x)$$
