Pre-Calc/Trig Unit 3: Analytic Trig and Applications/5.1 Fundamental Identities
Use the fundamental identities to find the value of the trigonometric ...
Use the fundamental identities to find the value of the trigonometric function.
Find cos θ if sin θ = - 
and θ is in quadrant III.]]>
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1.0000000
0.3333333
0
true
true
abc
- 
]]>
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Incorrect. Try one of the Pythagorean Identities.]]>
- 
]]>
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Correct. ]]>
- 
]]>
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Incorrect. Try one of the Pythagorean Identities.]]>
]]>
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Incorrect. Try one of the Pythagorean Identities.]]>