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Ross B.

asked • 04/27/18

H=10+3cos6t-sin9t-3sin3t show h can be rewritten as h= 13+4sin^3 t-6sin^2 3t-6sin3t

Please show the trigonometic identities and working

Gingy W.

Have you done the second part of this problem?"Using the proof find all times whenthe height of the arm is 9 cm


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