The angle between two planes \[x+2y+2z=3\] and \[-5x+3y+4z=9\] is [MP PET 2004]

\[{{\cos }^{-1}}\frac{19\sqrt{2}}{30}\]

\[{{\cos }^{-1}}\frac{3\sqrt{2}}{10}\]

\[{{\cos }^{-1}}\frac{19\sqrt{2}}{30}\]

\[{{\cos }^{-1}}\frac{9\sqrt{2}}{20}\]

\[{{\cos }^{-1}}\frac{3\sqrt{2}}{5}\]

The angle between two planes \[x+2y+2z=3\] and \[-5x+3y+4z=9\] is [MP

1.	The angle between two planes \[x+2y+2z=3\] and \[-5x+3y+4z=9\] is [MP PET 2004]
A.	\[{{\cos }^{-1}}\frac{3\sqrt{2}}{10}\]
B.	\[{{\cos }^{-1}}\frac{19\sqrt{2}}{30}\]
C.	\[{{\cos }^{-1}}\frac{9\sqrt{2}}{20}\]
D.	\[{{\cos }^{-1}}\frac{3\sqrt{2}}{5}\]
Answer» B. \[{{\cos }^{-1}}\frac{19\sqrt{2}}{30}\]

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The angle between two planes \[x+2y+2z=3\] and \[-5x+3y+4z=9\] is [MP PET 2004]

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