1.

Statement I. if alpha beta=-1 then the pair of straight lines x^2-2alphaxy-y^2=0 and y^2+2betaxy-x^2=0 are the angle bisector ofeach other. Statement II. Pair of angle bisector lines of the pair of lines ax^2+2hxy+by^2=0 is h (x^2-y^2)=(a-b)xy.

Answer»

STATEMENT I is TRUE, Statement II is true , Statement II is a CORRECT explanationfor Statement I
Statement I is true , Statement II is true , Statement II is not a correct EXPLANATION for statement I
Statement I is true , Statement II is false
Statement I is false , Statement II is true

ANSWER :a


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