Question 946103
{{{cos^2(q)+sin^2(q)=1}}}
{{{cos^2(q)+(0.82)^2=1}}}
{{{cos^2(q)+0.6724=1}}}
{{{cos^2(q)=0.3276}}}
{{{cos(q)=0.5724}}} and {{{cos(q)=-0.5724}}}