SOLUTION: If cos = x/4 and sin = 5y/3, eliminate the parameter: A)25x^2/9 + y^2/16 = 1 B)x^2/16 + 25y^2/9 = 1 C)25x^2/9 - y^2/16 = 1 D)x^2/16 - 25y^2/9 = 1

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Question 1106749: If cos = x/4 and sin = 5y/3, eliminate the parameter:
A)25x^2/9 + y^2/16 = 1
B)x^2/16 + 25y^2/9 = 1
C)25x^2/9 - y^2/16 = 1
D)x^2/16 - 25y^2/9 = 1

Answer by ikleyn(52906)   (Show Source): You can put this solution on YOUR website!
.
To eliminate the parameter in this problem, use the identity  +  = 1,  which will give you


 +  = 1,   or


 +  = 1.


Now identify it with one of four your options.


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