If q is the angle between a-2i-j-k- b-3i-4j-k- then sin q -

The correct option is A #10; √(155156) #10; a⃗×b⃗= #160;î amp; #160;ĵ amp; #160;k̂ amp; #160; #160;2 amp; #160; 1 ...

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Sum of n Terms

If q is the...

Question

If $q$ is the angle between $\to a = 2 \to i - \to j + \to k, \to b = 3 \to i + 4 \to j - \to k$ , then $sin q =$

\sqrt{\frac{155}{156}}

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\sqrt{\frac{156}{155}}

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\frac{155}{156}

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\frac{5}{7}

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\to a = \to i + \to j + \to k, \to a = 2 \to i + \to k, \to c = 2 \to i + \to j + \to k; \to d = \to i + \to j + 2 \to k

(\to a \times \to b) \times (\to c \times \to d) = [\to a \to b \to d] \to c - [\to a \to b \to c] \to d

\to r = 3 \to i + 2 \to j - 5 \to k

\to a = 2 \to i - \to j + \to k

\to b = \to i + 3 \to j - 2 \to k

\to c = - 2 \to i + \to j - 3 \to k

\to r = λ \to a + μ \to b + ν \to c

\to a = 3 \to i + 2 \to j + 6 \to k

\to b = 2 \to i + \to j + \to k

\to c = \to i - \to j + \to k

\to a = \to i - 2 \to j - 3 \to k, \to b = 2 \to i + \to j - \to k, \to c = \to i + 3 \to j - 2 \to k

(\to a \times \to b) \times \to c

\to a . \to b = 1

\to a \times \to b = \to j - \to k

\to a = \to i + \to j + \to k

\to b

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