x=4(1+cosθ) and y=3(1+sinθ) are the parametric equations of
A
(x−3)29+(y−4)216=1
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B
(x+4)216+(y+3)29=1
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C
(x−4)216−(y−3)29=1
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D
(x−4)216+(y−3)29=1
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Solution
The correct option is D(x−4)216+(y−3)29=1 Given, x=4(1+cosθ) and y=3(1+sinθ) ⇒cosθ=x4−1 and sinθ=y3−1 We know that cos2θ+sin2θ=1 ⇒(x4−1)2+(y3−1)2=1 ⇒(x−4)216+(y−3)29=1