Two lines L1 and L2 pass through the point of intersection of 2y=x-13 and 3y+x+12=0. L1 passes through p(-4,-7)and L2 is perpendicular to 2x-5y=4.find the acute angle between L1 andL2

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hibbo579

14.09.2020

Mathematics

12x+9= 45, x =3 3 is the answer

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Two lines L1 and L2 pass through the point of intersection of 2y=x-13 and 3y+x+12=0. L1 passes through p(-4,-7)and L2 is perpendicular to 2x-5y=4.find the acute angle between L1 andL2 ​