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Mathematics 15 Online
OpenStudy (anonymous):

Find sin theta if cot theta = -2 and cos theta < 0.

OpenStudy (anonymous):

I got 1.11 but the closest answer choice is sqrt5/2...

OpenStudy (rajee_sam):

it is not right

OpenStudy (rajee_sam):

sin theta varies from -1 to 1

OpenStudy (rajee_sam):

I got .447

OpenStudy (anonymous):

Oh, I see. Thank you for taking the time to visit my question again.

OpenStudy (rajee_sam):

just to check your answer, you say sin theta = 1.11 so sin inv of 1.11 should give you theta right? it gives me invalid input if I put in the calculator.

OpenStudy (rajee_sam):

is .447 one of the choices?

OpenStudy (anonymous):

Yup, you're right, because .447 would be the same as sqrt5/5 which matches one of my answer choices

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