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7 May, 05:12

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

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  1. 7 May, 08:18
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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.
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