Question 1014832
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What values for theta( 0 <= theta <= 2pi) satisfy the equations? 
1. 4cos(theta) + 1 = 2cos(theta);
2. cos(theta) - tan(theta)cos(theta)= 0
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1.  {{{4*cos(theta) + 1}}} = {{{2*cos(theta)}}}  --->  {{{2*cos(theta)}}} = -1  --->  {{{cos(theta)}}} = {{{-1/2}}}  --->  {{{theta}}} = {{{2pi/3}}}  and/or  {{{theta}}} = {{{4pi/3}}}.  

    No other solutions in the given interval.


2.  {{{cos(theta) - tan(theta)cos(theta)}}} = {{{0}}}  --->  {{{tan(theta)}}} = 1  --->  {{{theta}}} = {{{pi/4}}}  and/or  {{{theta}}} = {{{5pi/4}}}.

    No other solutions in the given interval.
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