Asked by Lisa

If sin(theta) < 0 and tan(theta) > 0 then: in degrees. Ok I need help with this I couldn't understand the lesson and want to know how to do problems like this. Please help me by showing me step by step! Thank u in advance.
Answered by Damon
sin has the same sign as cos in quadrants 1 and 3 so that is where tan >0
but the sin is negative in quadrants 3 and 4 only
so theta must be in quadrant 3
Answered by Anonymous
I needed help figuring it out in degrees like 0 degrees < theta < 90 degrees. Thanks
Answered by Lisa
sorry I forgot to put my name.
Answered by Damon
quadrant 3 is the lower left, 180 degrees to 270 degrees

180 </= theta </= 270
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