olive4945 olive4945

29-03-2019
Mathematics

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Please help it is an emergency,,,,, points and metal reward

Eliminate the parameter of:

x = 4 cos t, y = 4 sin t

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LammettHash LammettHash

29-03-2019

Recall the Pythagorean identity:

[tex]\cos^2x+\sin^2x=1[/tex]

so

[tex]x^2+y^2=(4\cos t)^2+(4\sin t)^2=16(\cos^2t+\sin^2t)=16[/tex]

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