1.

Show that the lines joining the origin to the two points of intersection of the curves ax^(2)+2hxy+by^(2)+2gx=0, a_(1)x^(2)+2h_(1)xy+b_(1)y^(2)+2g_(1)x=0 will be at right angles to one another if g(a_(1)+b_(1))=g_(1)(a+b)

Answer»


ANSWER :`g_(1)(a+b)`


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