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3-1.Vectors
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$\overrightarrow A = \hat iA\,\cos \theta + \hat jA\,\sin \theta $ જે સદીશ છે બીજો સદીશ $\overrightarrow B $ જે $\overrightarrow A$ ને લંબ હોય તો .... થાય.
A
$\hat i\,B\,\cos \theta + j\,B\sin \theta $
B
$\hat i\,B\,\sin \theta + j\,B\cos \theta $
C
$\hat i\,B\,\sin \theta - j\,B\cos \theta $
D
$\hat i\,B\,\cos \theta - j\,B\sin \theta $
Solution
(c)Dot product of two perpendicular vector will be zero.
Standard 11
Physics
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