What is the angle between the linesxcos α + ysin α = a andxsin β - – McqOptions

MCQOPTIONS

1.	What is the angle between the linesxcos α + ysin α = a andxsin β - ycos β = a?
A.	β - α
B.	π + β - α
C.	\(\frac{\left( \pi +2\beta +2\alpha \right)}{2}\)
D.	\(\frac{\left( \pi -2\beta +2\alpha \right)}{2}\)
Answer» E.

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