Teaching DSSSB TGT Mock Test 2025 Mathematics Vector Algebra Scalar and Vector Product

यदि \(\vec{a},\vec{b}\) इकाई सदिश हैं तथा उनके बीच का कोण θ है, तो \(\frac{|\vec{a}-\vec{b}|}{2}\) है :

1
sin θ
2
sin 2θ
3
\(\sin \frac{\theta}{2}\)
4
sin2 θ
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