A straight line passing through P(3,1) meets the coordinate axes at A and B. It is given that distance of this straight line from the origin O is maximum. Area of △OAB is equal to
503 sq. units
203 sq. units
1003 sq. units
253 sq. units
A
503 sq. units
B
253 sq. units
C
203 sq. units
D
1003 sq. units
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Solution
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Line AB will be farthest from origin if OP is right angled to the line drawn. Hence, mOP=13⇒mAB=−3
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