A line L has intercepts a & b on the coordinate axes. When the axes are rotated through a given angle, keeping the origin fixed, the same line has intercepts p & q. Then:
(a). a2 + b2 = p2 + q2
(b). 1/a2 + 1/b2 = 1/p 2+ 1/q2
(c). a2 + p2 = b2 + q2
(d). 1/a2 + 1/p2 = 1/b2+ 1/q2
A line L has intercepts a & b on the coordinate axes. When the axes are rotated through a given angle, keeping the origin fixed, the same line has intercepts p & q. Then:
(a). a2 + b2 = p2 + q2
(b). 1/a2 + 1/b2 = 1/p 2+ 1/q2
(c). a2 + p2 = b2 + q2
(d). 1/a2 + 1/p2 = 1/b2+ 1/q2
sonu , 12 Years ago
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