Posted by mrkkn on Friday, July 16, 2010 at 7:49am.
From the ratios of sides of the 30-60-90 triangle you know that if
sinØ= +1/2 , then Ø = 30°
Also in the 4th quadrant, both the sine and tangent and of course their reciprocals are negative, the cosine is positive.
so
sinØ = -1/2 csc‚ = -2
cosØ = √3/2 secØ = 2/√3
tanØ = - 1/√3 cotØ = -√3
Related Questions
trig - FInd the exact value pf the 6 trig function of alpha Given: point (-2,-6...
trigonometry - given that sin alpha/2 = 2/3, and that alpha/2 is in quadrant II...
trig - Find the values of the other five trigonometric functions for angle S. a...
trig - Find the values of the other five trigonometric functions for angle S. a...
trig - If sin alpha = -3/5, sin beta = -5/13, P(alpha) is in the third quadrant...
trig - express 20sin theta + 4 cos theta as R sin(theta + alpha) R sin(theta + ...
trig - If cos 0 = - 1/2 and tan 0 > 0, find the quadrant that contains ...
Math - The terminal side of an angle alpha (in standard position) contains the ...
Math - sec(alpha) = -4(√(5))/5 find exact values at alpha for the ...
Algebra 2 - Can someone help me figure these out? I think if someone can explain...
For Further Reading
