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A plane which bisects the angle between the two given planes 2x – y + 2z – 4 = 0 and x + 2y + 2z – 2 = 0, passes through the point :

1. (1, –4, 1)
2. (1, 4, –1)
3. (2, 4, 1)
4. (2, –4, 1)

Correct answer: (2, –4, 1)

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