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How to find cos11pi/3. what is the steps to find this

User Cgon
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1 Answer

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cos(11π/3)

=cos(660)

=cos(360+180+90+30)

=cos(60)

=1/2

*Use the trigonometric quadrants to figure out the answer (All, Sin, Tan, Cos). And create the 60 degree right angled triangle with an adjacent side 1 and a hypotenuse of 2.
How to find cos11pi/3. what is the steps to find this-example-1
User Nmadhok
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7.2k points