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Q. In a right triangle, one angle measures xo degrees, where sin xo =4/5. What is cos (90o-xo)?
a. 1/5
b. 4/5
c. 3/5
d. 1/√3
e. 1/√5
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0 90 TRUE

MATH PRACTICE TEST    

SAT STUDY GUIDE-2108

COLLEGE BOARD PUBLICATION