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Consider the parabola y^2 = 4x. Let P and Q be points on the parabola where P(4, –4) & Q(9, 6).

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Consider the parabola y2 = 4x. Let P and Q be points on the parabola where P(4, –4) & Q(9, 6). Let R be a point on the arc of the parabola between P & Q. Then the area of ΔPQR is largest when 

(A) ∠PQR = 90° 

(B) R(4, 4) 

(C) R(1/4,1) 

(D) R(1, 1/4)

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The correct option (C) R(1/4, 1)   

Explanation:

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