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Apps C www.webassign.net/web/student/Assignment Responses/submit?pos 38dep 15636134 The lust Nutella Stuffed Frend (c) se 5) Express the lengths a and b in the figure in terms of 0. 24 sin (0) b 24 cos (0) 6) If sin and sec(y) where x and y lie between 0 and m/2, evaluate sin y) 0.9374 8) Find all values of such that sin 2x sin x and o s x s 2m. (Enter your answers as a comma-separated list.) you have had difficulty with these problems, you should look at Appendix D of your text or YouBook. submit Answer save Progress Practice Another Version Label 396569417 pdf Label 396569417

Explanation / Answer

8) sin 2x = sin x

we know that sin 2x = 2sinxcosx , so

2sinxcosx=sinx

this is true when sinx=0 or when cosx=1/2.

sin(0)=sin(2pi)=0,
cos(pi/3)=cos(5pi/3)=1/2

so the answer is 0 ,pi/3 ,pi, 5pi/3 or 2pi

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