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Find trig values for angles outside the first quadrant
Worksheet
Grade Level
Trigonometry
TRIG.45 Find trig values for angles outside the first quadrant
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🔴 Hard
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Select the option that reduces -510 deg correctly before evaluating cos(-510 deg).
A
cos(-510 deg + 720 deg) = cos(180 deg + 30 deg) = sqrt(3)/2
B
cos(-510 deg + 720 deg) = cos(180 deg + 30 deg) = -sqrt(3)/2
C
cos(-510 deg + 720 deg) = cos(180 deg - 30 deg) = sqrt(3)/2
D
cos(-510 deg + 720 deg) = cos(360 deg - 30 deg) = sqrt(3)/2
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