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Angle 0 is in standard position. if sin(0) = -1/3, < 0 < 3/2 , find cos (0).

Angle 0 Is In Standard Position If Sin0 13 Lt 0 Lt 32 Find Cos 0 class=

Sagot :

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Answer:

-2 sqrt (2) /3

Step-by-step explanation:

sin = -1/3 its in the 3rd quadrant so sin is negative cos is negative

sin^2 O + cos ^2 O = 1

1 - (1/9) = cos^2 O

[tex] \cos( \alpha ) = \frac{ - 2 \sqrt{2} }{3} [/tex]

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