The elimination of θ from xcosθ - ysinθ = 2 and xsinθ + ycosθ = 4 will give:
A. 3x2 - y2 = 20
B. x2 + y2 = 20
C. 3x2 + y2 = 20
D. x2 - y2 = 20
Answer: Option B
Solution (By Examveda Team)
xcosθ - ysinθ = 2 . . . . . . (i)xsinθ + ycosθ = 4 . . . . . . (ii)
Squaring equation (i) and equation (ii) and adding-
x2 + y2 = 20
This Question Belongs to Arithmetic Ability >> Coordinate Geometry
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