The abscissa x of the intersection of images with y=6cosx and y=5tanx. Meet 6cosx. =5tanx., which is 6(cosx. )? =5sinx., that is, 6-6(sinx. )? =5sinx .

Solve sinx. =2/3, so y=6cosx and y=5tanx are the abscissa x of the image intersection. Meet Sinks. =2/3, that is, the abscissa x of P2. Meet Sinks. =2/3,

And P2 is on y=sinx, so the ordinate of P2 is y=snx. =2/3