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3 votes
Show where the expression in number 8 would be on a unit circle

Show where the expression in number 8 would be on a unit circle-example-1
Show where the expression in number 8 would be on a unit circle-example-1
Show where the expression in number 8 would be on a unit circle-example-2
User Emphaticsunshine
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1 Answer

18 votes
18 votes

Solution

Step 1:

Write the expression


cos270\text{ }

Step 2


\begin{gathered} cos270\text{ = 0} \\ sin270\text{ = -1} \\ (0,\text{ -1\rparen} \end{gathered}

Question 8 Second part


\begin{gathered} sin((16\pi)/(3))\text{ = sin960 = sin\lparen960 - 2}*360)\text{ = sin240} \\ sin((16\pi)/(3))\text{ = }(-√(3))/(2) \\ cos((16\pi)/(3))\text{ = }(-1)/(2) \end{gathered}
((-1)/(2),\text{ }(-√(3))/(2))

Show where the expression in number 8 would be on a unit circle-example-1
Show where the expression in number 8 would be on a unit circle-example-2
User Yerlan Yeszhanov
by
2.6k points