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Maths Question 22 – JEE-MAIN 2026

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From the point (−1,−1), two rays are sent making angles of 45∘ with the line x+y=0. These rays get reflected from the mirror x+2y=1. If the equations of the reflected rays are ax+by=9 and cx+dy=7, a,b,c,d∈Z, then the value of ad+bc is _______.
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