UPSC NDA II 2010 Mathematics Paper

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Question : 86 of 120
 
Marks: +1, -0
What is the equation to the straight line joining the origin to the point of intersection of the lines
‌
x
a
+‌
y
b
=1‌ and ‌‌
x
b
+‌
y
a
=1‌ ? ‌

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