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hrome File Edit View History Bookmarks People Window Helo VARna Exam c D www.webassign.net/weblStudent/A 15988305 Find the period and amplitude. period amplitude Find all solutions of the equation in the interval to,2r).(Enter your answers as a comma-separated lst) 13. O-3 points LarTrg9 140245 Find the reference angle 6. 1150 6.

Solution

11) y= (5/3)*cos (6x/7)

by equating this equation to general equation, y= A*cos(Bx)

A= amplitude= 5/3

time period,T = 2*pi/B ( here B= 6/7)

T= 2*pi/ (6/7)

T= 7*pi/3