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OpenStudy (anonymous):
Give an example of a real number t for which cos t is positive and sin t is negative.
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OpenStudy (anonymous):
yeah dont know how sorry can look up
OpenStudy (anonymous):
wat grade u in
OpenStudy (anonymous):
11th
OpenStudy (abmon98):
280
OpenStudy (anonymous):
im in 7th
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OpenStudy (abmon98):
according to trigonometric functions, in the 4th quad cosine is positive and sine is negative you could try any number greater than 270 and less than 360
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