The acute angle between the planes 2x-y-3z=7and x+2y+2z=0 is
- \(\cos^{-1}(\frac{-\sqrt{14}}{14})\)
- \(\pi-\cos^{-1}(\frac{-\sqrt{14}}{7})\)
- \(\cos^{-1}(\frac{\sqrt{14}}{11})\)
- \(\pi-\cos^{-1}(\frac{-\sqrt{14}}{21})\)
- \(\pi-\cos^{-1}(\frac{\sqrt{14}}{7})\)
The Correct Option is B
Solution and Explanation
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