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we have two books the Fitzpatrick and the Cambridge and i think the Cambridge is wayyyy harder and it has hsc style questions. but at school we use the fitzpatrick so i do the cambridge at home which is a bitch...

show that the line 2y+x+5 = 0 is a tangent to the ellipse (x^2)/9 + (y^2)/4 = 1 . find the coordinates of the point of contact. thanks