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giannimaraj711
27.09.2019 •
Mathematics
Order 3/8 3/9 3/8 from least to greatest without writing eguivalent fractions with a common denominator. explain your strategy.
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Ответ:
Ответ:
-cos(55°)
Step-by-step explanation:
The reference angle for second-quadrant angle 125° is (180-125)° = 55°. The cosine is negative in the second quadrant, so the equivalent expression is ...
cos(125°) = -cos(55°)
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Your calculator (in degrees mode) can help you sort this out.