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Mathematics 18 Online
OpenStudy (anonymous):

Help please ,Will fan and medal. http://prntscr.com/aaihn7

OpenStudy (danjs):

remember the sin function sin(stuff) has values between -1 and 1

OpenStudy (danjs):

the max sin(theta +30) can be is +1, so the max of f(x) is f max = 7*1 + 4 = 11

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