Teaching DSSSB TGT Mock Test 2025 Engineering Mathematics Calculus Vector Calculus

सदिश क्षेत्र \(\vec u = {e^x}\left( {\cos y\hat i + \sin y\hat j} \right)\) का अपसरण ________ है। 

1
0
2
ex cosy + ex siny
3
2ex cosy
4
2ex siny
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