Question 1028834
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Find the exact value of each of the following. In each case, show your work and explain the steps you take to find the value.

1. sin 17pi/6

2. tan 13pi/4

3. sec 11pi/3
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1.  {{{sin(17pi/6)}}} = {{{sin(18pi/6 - 1pi/6)}}} = {{{sin(3pi - pi/6)}}} = {{{sin(pi - pi/6)}}}        ( since sin is periodic with the period of {{{2pi}}} )

    = {{{sin(pi/6)}}} =      ( since {{{sin(pi-alpha)}}} = {{{sin(alpha)}}} for any {{{alpha}}} )

    = {{{1/2}}}.             ( as everybody knows )
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