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OpenStudy (tracyy):
Evaluate WITHOUT using a calculator by using ratios in a reference triangle.
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OpenStudy (tracyy):
csc 135 degrees sec 60 degrees How can I do this without using a calculator?
OpenStudy (anonymous):
@qazwsxedcr
OpenStudy (p0sitr0n):
sec = 1/cos 60 degrees = pi/3 cospi/3 = 1/2 1/1/2=2
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