Find the exact value of the trigonometric function. (If an answer is undefined,

Question

Find the exact value of the trigonometric function. (If an answer is undefined, enter UNDEFINED.) cos (210) Read It Watch It O -H points sAlgTrigA 5.3.014 Find the exact value of the trigonometric function. (If an answer is undefined, enter UNDEFINED.) Sin Need Help? Read it points SAlgTrig4 5.3.016 Find the exact value of the trigonometric function. (If an answer is undefined, enter UNDEFINED.) sin(-2100) Need Help? Read It -H1 points SAlgTrig4 5.3.020 Find the exact of the trigonometric function. (If an answer is undefined, enter UNDEFINED value cot(210a)

Explanation / Answer

cos 210

cos(180 + 30) = -cos 30=-sqrt3/2

sin 300

sin(360-60)=-sin 60=-sqrt3/2

sin -210

sin(- theta)=-sin theta

sin(-210)=- sin 210 =-sin(180+30)=-sin 30=1/2

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