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MATHSSSS FASTTTIf the lines 3x-5y=7 and 4x+ay+9=0 areperpendicular to each other, find the value of 'a' |
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Answer» a1=3, a2=4&b1=5, b2=a &c1=7, c2=9 Step-by-step EXPLANATION: a1/a2 the not EQUAL a=5=b1/b2=c1/c2 3/4=5/a=7/9 |
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