3 years ago

Why is cosine positive in the 4th quadrant and sine isn’t?

Mathematics

1 answer:

kari74 [83]3 years ago

8 0

Answer:

Because sine can only be positive in quadrant II according to the CAST rule.

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help me plsss ths is ver confusing to me and i do not get it i dont want to get an f on this test........so can some one plss he

lisabon 2012 [21]

Answer:

<h2>see the answers</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>

fraction

<h3>let's solve:</h3>

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let's do:

$\frac{22}{3} \\ = 7 \frac{1}{3} \: feet \:$

let's the pieces be p

according to the question

$\sf 3p = 22 \\$
$\sf divide \: bot h \: sides \: by \: 3 : \\ \sf \frac{3p}{3} = \frac{22}{3} \\ p = 7\frac{1}{3}$

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