The value of a- b - c- d - b- c - a- d - c- a - b- d is

The correct option is A 0 ( a× b )· ( c× d) = (a.c)(b.d) (a.d)(b.c) ( b× c )· ( a× d) = (b.a)(c.d) (b.d)(c.a) ( c× a )· ( b× d) = (c.b)(a.d) (c.d ...

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Selecting Consecutive Terms in A.P

The value of ...

Question

The value of
$(a \times b) \cdot (c \times d) + (b \times c) \cdot (a \times d) + (c \times a) \cdot (b \times d)$ is

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Solution

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| a | = 2

, | b | = 3

| c | = 4

a + b + c = 0

b \cdot c + c \cdot a + a \cdot b

\to a, \to b

\to c

\to a + \to b + \to c = \to 0

λ = \to a \cdot \to b + \to b \cdot \to c + \to c \cdot \to a

\to d = \to a \times \to b + \to b \times \to c + \to c \times \to a

(λ, \to d)

| \to a | = | \to b | = | \to c | = 2

\to a \cdot \to b = \to b \cdot \to c = \to c \cdot \to a = 2,

[\to a \to b \to c] cos 45^{\circ}

A, B, C

\frac{A \cdot (B \times C)}{(C \times A) \cdot B} + \frac{B \cdot (A \times C)}{C \cdot (A \times B)}

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