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a line is drawn through a point [1,2] to meet the coordinate axis at P and Q such that the area of triangle OPQ where o is origin is LEAST then slope of line PQ is.... a.-1/2 b.-2 c.-1/4 d.-4
Ans. -2 Equation of line with x-intercept ‘a’ and y-intercept ‘b’ is: OP = a, OQ = b Area of triangle OPQ = A = ½ ab Line is passing through [1,2], To minimize the area, dA/da = 0 a = 0, 2At a = 0, Area = 0 Not Possiblea = 2 is minimaCheers!Thanks & RegardsJitender SinghIIT DelhiaskIITians Faculty
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