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OpenStudy (anonymous):
find the exact value of each expression without using a calculator! Please help! 1)tanπ/4 2) cotπ/3 3) secπ/6 4)cscπ/4 5)sinπ/2 6) sin 5π/6 7) sin(-8π/3) 8) tan (-14π/3)
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OpenStudy (freckles):
a unit circle could be helpful.
OpenStudy (freckles):
find pi/4 on your unit circle hint: it is in the first quadrant then do y/x since tan(theta)=y/x
OpenStudy (freckles):
do you see pi/4 in the first quadrant?
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