pre cal help please fast?

A wise Attack

New member
indicate the direction of the curve eliminate the parameter and write the coresponding rectangular equation that represents the curve:
18.) x=cos(theta) y=2sin2(theta)

22.) x=sec(theta) y=tan(theta)

first correct answer gets best answer
no bad answers please i need to see if i got these right and see how u got the answer
thanks much
 
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