CUET and UG exam CUET UG 2025 Mock Test Series Mathematics Vector Algebra Scalar and Vector Product

सदिशों \(\vec a = 2\hat i - 6\hat j - 3\hat k\) और \(\vec b = 4\hat i + 3\hat j - \hat k\) के बीच के कोण का साइन (sine) है?

1
\(\frac{1}{{\sqrt {26} }}\)
2
\(\frac{5}{{\sqrt {26} }}\)
3
\(\frac{5}{{26}}\)
4
\(\frac{1}{{26}}\)
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