SOLUTION: Write the first expression in terms of the second if the terminal point determined by t is in the given quadrant cos(t), sin(t); Quadrant IV
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-> SOLUTION: Write the first expression in terms of the second if the terminal point determined by t is in the given quadrant cos(t), sin(t); Quadrant IV
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Question 1197485: Write the first expression in terms of the second if the terminal point determined by t is in the given quadrant cos(t), sin(t); Quadrant IV Answer by ikleyn(52794) (Show Source):
If the first expression is cos(t) and the second expression is sin(t),
with t in quadrant IV, then
cos(t) = ,
where the square root represents the positive number.
It is because the cosine function is positive / (non-negative) in QIV.
