Question 949920
suppose sin theta = x/7 and the angle theta is in the first quadrant. I need to write algebraic equations for cos theta and tan theta in terms of x
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{{{sin(theta)=x/7}}}
{{{cos(theta)=sqrt(1-sin^2(theta))=sqrt(1-(x^2/49))=sqrt((49-x^2)/49)))}}}={{{(sqrt(49-x^2))/7}}}
{{{tan(theta)=sin(theta)/cos(theta)=x/(sqrt(49-x^2))=x*sqrt(49-x^2)/(49-x^2)}}}