Let →a, →b and →c be 3 mutually perpendicular unit vectors. If →d is a unit vector which is equally inclined to →a, →b and →c, then the value of |→a+→b+→c+→d|2 is p+√q then p+q is

Let →a, →b and →c be 3 mutually perpendicular unit vectors. If �

1.	Let →a, →b and →c be 3 mutually perpendicular unit vectors. If →d is a unit vector which is equally inclined to →a, →b and →c, then the value of \|→a+→b+→c+→d\|2 is p+√q then p+q is
Answer» Let $\to a$ , $\to b$ and $\to c$ be 3 mutually perpendicular unit vectors. If $\to d$ is a unit vector which is equally inclined to $\to a$ , $\to b$ and $\to c$ , then the value of $\| \to a + \to b + \to c + \to d \|^{2}$ is $p + \sqrt{q}$ then $p + q$ is

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Let →a, →b and →c be 3 mutually perpendicular unit vectors. If →d is a unit vector which is equally inclined to →a, →b and →c, then the value of |→a+→b+→c+→d|2 is p+√q then p+q is

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