like csc/sec have to be greater than 1 tan and cot can be any real number sin/cos must be between 0 and 1? huh?
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Originally Posted by algebra2 like csc/sec have to be greater than 1 tan and cot can be any real number sin/cos must be between 0 and 1? huh? csc/sec can be 1 so that should be greater than or equal to 1. sin/cos must be between -1 and 1 (inclusive "between" so can be 1 and -1). RonL
Originally Posted by algebra2 like csc/sec have to be greater than 1 tan and cot can be any real number sin/cos must be between 0 and 1? huh? Remember ASTC 1st quadrant: all of sine, cosine, and tangent are positive 2nd quadrant: only sine is > 0 3rd quadrant: only tangent is > 0 4th quadrant: only cosine is > 0
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