Q.
Normal form of x+3y=2
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a
xcosπ2+ysinπ6=2
b
xcosπ3+ysinπ3=2
c
xcosπ3+ysinπ3=1
d
xcosπ6+ysinπ6=1
answer is C.
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Detailed Solution
given line is x+3y=2 divide with a2+b2=1+3=2 12(x)+32y=22=1 xcosπ3+ysinπ3=1 ⇒xcosα+ysinα=p here α=π3 ; p = 1
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