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supppose t is a number and tangent of theta equals t and 0<theta<90. find all of the angles between 0 and 360 whose tangent equals -t

if sin of theta equals 3/5, cosine of theta is <0, sin of alpha equals -8/15 and cos of alpha <0, determine the exact values for sin(theta plus alpha) and cos(theta plus alpha)  

In a certain town in Illinois, it rained on 148 out of the 366 days in the year 2012. 22 of those days were Wednesdays, and 20 of those days were Saturdays. Suppose it was raining at noon on a Wednesday...

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