39let X and Y be the new coordinates
then X= x cos θ +y sinθ
Y=- x sinθ + y cosθ
now u do it.
the transformed eqn of 3x2+3y2+2xy=2 when the co ordinate axes are rotated through an angle of 45
a)x2+2y2=1
b)2x2+y2=1
c)x2+y2=1
d)x2+3y2=1
actually i don t know the basic approach to such sum .so plzz explain
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4 Answers
39
11i can further add that think in terms of vectors
nnow 4m here u could reach to ur requisite answer
this is the basics
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