Question 329111
Terminal as in the end, terminating.
Starts at the origin ends at (8,6).
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{{{drawing(300,300,-2,10,-2,10,locate(1.2,0.75,theta),grid(1),circle(0,0,.3),circle(8,6,.3),blue(line(0,0,8,6)),graph(300,300,-2,10,-2,10,0))}}}
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I'll start you off and you finish.
{{{sin(theta)=OPP/HYP=6/sqrt(6^2+8^2)=6/10=3/5}}}