Mathematics, 15.10.2019 20:00, jakalacoles19
What are the phase shift and period for the function y = 5cos[9(θ − 30°)] − 2?
Answers: 1
![\bf y=5cos[9(\theta-30^o)]-2\implies y=5cos\left[9(\theta-\frac{\pi }{6}) \right]-2 \\\\\\ y=5cos(9\theta-\frac{3\pi }{2})-2\\\\ -------------------------------\\\\ \begin{array}{lllcclllll} y=&5cos(&9\theta&-\frac{3\pi }{2} )&-2\\ &\uparrow &\uparrow &\uparrow &\uparrow \\ &A&B&C&D \end{array}\\\\ -------------------------------\\\\](/tpl/images/0322/7239/a1451.png)
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What are the phase shift and period for the function y = 5cos[9(θ − 30°)] − 2?...
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