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Question

State the quadrant in which θ lies.
1.) CSC θ is greater than 0 and TAN θ is
less than 0.

2.) SEC θ is greater than 0 and SIN θ is
less than 0.
12 years ago

Answers

Reiny
if cscØ > 0 , then sinØ > 0

the sine is + in I and II , by the CAST rule
the tangent is - in II and IV , by the CAST rule
so Ø in in II

so the 2nd question the same way. ( IV )
12 years ago

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