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Mathematics 12 Online
OpenStudy (anonymous):

Please help! i will fan and medal! θ is in Quadrant III and cos^2(θ)=1/4 A. Evaluate cotθ. B. In two or more sentences, explain how to find the value of cotθ.

OpenStudy (anonymous):

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OpenStudy (anonymous):

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OpenStudy (anonymous):

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OpenStudy (anonymous):

im sorry to say but MARIO

OpenStudy (anonymous):

Square root both the sides, after that you will get 2 values for cos theta, a positive and a negative value but you are given theta in in 3rd quadrant so use that fact to figure out the right value For reference: In 1st Quadrant all trig functions are positive In 2nd only sine and cosecant are positive In 3rd only tangent and cotangent are positive In 4th only cosine secant are positive A good mnemonic to remember is After School To College A for all postive S for sine and it's reciprocal positive T for tangent and it's reciprocal positive C for cosine and it's reciprocal positive

OpenStudy (anonymous):

okay so cos(θ)=1/2. how does that help me know what cotθ is? @Nishant_Garg

OpenStudy (anonymous):

Are you sure it's 1/2 and not -1/2?? Check carefully, After that if you remember your trig table the values of 30, 45, 60, 90 for your trig functions u should be able to find your angle and then use the same table to find cot theta Really it's more of a memory game here

OpenStudy (anonymous):

mario im random

OpenStudy (anonymous):

i dont know what trig table you are talking about @Nishant_Garg

OpenStudy (anonymous):

Basically trig values for the angles 30, 45, 60, 90 are somewhat basic and you should remember them for at least sine cos tan so really it's easy if u remember the values u can clearly tell which angle it is

OpenStudy (anonymous):

or u can use a calculator if u r allowed

OpenStudy (princeharryyy):

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