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06-12-2014
Mathematics

Answered

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

Answer :

Аноним Аноним

06-12-2014

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.

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