Find by calculation whether the points (13,8), (26,- 4) lie in the same, adjacent, or opposite
angles formed by the straight lines 5x + 6y - 112=0, and 10x + 1ly - 217 = 0.
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hope it helps you!!!!....
Solution for last step :
10×26+11×-(4)-217
260+(-44)-217
260-44-217
216-217
=-1
it's not -6 ...
-1 is less than 0...
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