Brocolli cost $3.36 a pound at the market. If Marisa bought 2.5 pounds, what was the cost?
2 answers:
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In the second quadrant, both cos and tan are negative while only sin is positive.
To find tan, we will use the following property below:
Sec is the reciprocal of cos. If cos is a/b then sec is b/a. Since cos is 2/3 then sec is 3/2
Since tan is negative in the second quadrant. Hence,
Answer
- tan = -√5/2