Q.
If the line 2x−y+3=0 is at distances 15 and from the lines 4x−2y+α=0 and 6x−3y+β=0 respectively the sum of all possible values of a and β,, is
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answer is 30.
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Detailed Solution
It is given that3−α2=15 and 3−β34+1=25⇒3−α2=1 and 3−β3=2⇒|6−α|=2 and |9−β|=6⇒ 6−α=±2 and 9−β=±6⇒ α=4,8 and β=3,15Hence, the sum of all possible values of α and β is 4 + 8 + 3 + 15 = 30 .
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