Question:

The angle between the straight lines x−y3=5 and 3x+y=7 is

Updated On: Jul 31, 2023
  • (A) 90o
  • (B) 60o
  • (C) 75o
  • (D) 30o
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The Correct Option is A

Solution and Explanation

Explanation:
Given, equations of straight lines arex−y3=5 and 3x+y=7On comparing with ax+by=0, we geta1=1,b1=−3,a2=3,b2=1Now, a1a2+b1b2=1⋅3+(−3)⋅1=0∴ Lines are perpendicular.∴θ=90∘

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