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1. |
Find the angle between the planes 6x-3y+7z=8 and 2x+3y-2z=5? |
A. | (cos^{-1} frac{ u206111}{ sqrt{98}} ) |
B. | (cos^{-1} u2061 frac{ u206111}{ sqrt{1598}} ) |
C. | (cos^{-1} frac{ u2061 u206113}{ sqrt{198}} ) |
D. | (cos^{-1} frac{ u2061 u206111}{1598} ) |
Answer» C. (cos^{-1} frac{ u2061 u206113}{ sqrt{198}} ) | |