Question 644905
suppose sin t=2/7 and cos t < 0. find each of the following values: cos t, tan t, csc t, sec t, cot t.
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If sin>0 and cos<0, reference angle is in quadrant II
Given sin t=2/7
cos t=-&#8730;(1-sin^2t)
=-&#8730;(1-4/49)
=-&#8730;(49/49-4/49)
=-&#8730;(45/49)
=-&#8730;45/7
tan t=sin t/cos t=-2/&#8730;45
csc t=1/sin t=7/2
sec t=1/cos t=-7/&#8730;45
cot t=1/tan t=-45/&#8730;2