Question 1089663
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<pre>
Before making calculations, simplify and evaluate each term/factor separately:


1)  {{{tan(17pi/4)}}} = {{{tan(pi/4)}}} = 1;


2)  {{{cos(-11pi/4)}}} = {{{cos(-3pi/4)}}} = {{{-sqrt(2)/2}}};


3)  {{{sec(-34pi/3)}}} = {{{1/cos(-34pi/3)}}} = {{{1/cos(-4pi/3)}}} = {{{1/((-1/2))}}} = -2;


4)  {{{csc(25pi/6)}}} = {{{1/sin(25pi/6)}}} = {{{1/sin(pi/6)}}} = {{{1/((1/2))}}} = 2.


Now you have everything to complete calculations in one line:


tan(17&#960;/4)cos(-11&#960;/4)+sec(-34&#960;/3)csc(25&#960; /6) = {{{1*(-sqrt(2)/2) + (-2)*2)}}} = {{{-sqrt(2)/2 - 4}}}.
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Solved.