MathematicsMedium249×since 2002Q2591The acute angle between the planes P₁ and P₂, when P₁ and P₂ are the planes passing through the intersection of the planes 5x+8y+13z−29=05x + 8y + 13z - 29 = 05x+8y+13z−29=0 and 8x−7y+z−20=08x - 7y + z - 20 = 08x−7y+z−20=0 and the points (2, 1, 3) and (0, 1, 2), respectively, is :Aπ3{\pi \over 3}3πBπ4{\pi \over 4}4πCπ6{\pi \over 6}6πDπ12{\pi \over 12}12πCheck answerSkip