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Convert the given polar equation to a Cartesian equation. (Use the following as necessary: X and y.) r = 7 sec(0) 2 2_7(x2+y2) x +y f X Recall the reciprocal of sec(9). What is the relationship between cos(9), X, and r? How can substitution and algebraic manipulation be used to write an equation with only variables y and x? Convert the polar equation to rectangular. r = 8 tan 0 sec 0 x 8y (x2 + 12 ) 123 Tutorial X Recall the conversion formula tan 0 = . What is the conversion formula for x in terms of cos 0? Substitute the Cartesian expressions appropriately in the given equation.Convert the given polar equation to a Cartesian equation. (Use the following as necessary: X and y.) r2 = 3 sec(0) csc(9) 2 2 3 x . y 1/x2+y2 1/x2+y2 X Recall the reciprocals of sec(0) and of csc(l9). What is the relationship between cos(9), X and r? What is the relationship between sin(l9), y, and r? How can substitution and algebraic manipulation be used to write an equation with only variables y and x