Question 859457
{{{sin(A+B)=sin(A)cos(B)+cos(A)sin(B)}}}
{{{sin(8*pi*t+B)=sin(8*pi*t)*cos(B)+cos(8*pi*t)sin(B)}}}
{{{R*cos(B)=6}}}
{{{R*sin(B)=-8}}}
{{{tan(B)=-8/6=-4/3}}}
{{{alpha=tan^(-1)(-4/3)}}}
{{{R^2*cos^2(B)+R^2*sin^2(B)=36+64}}}
{{{R^2=100}}}
{{{R=10}}}
{{{6sin(8*pi*t)-8cos(8*pi*t)=10sin(8*pi*t+tan^(-1)(-4/3))}}}