Question

4. If V, = 3î + 4j+K & V2=î- j determine the magnitude of V1+V2
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Answer 1

Answer:

determinants lga le bhai ek unit vector bana kr

Answer 2

Answer:

I think it will be 6.41

Step-by-step explanation:

if we simply determine the magnitude of v1 it will came 5 . because by squaring 3 will become 9 and 4 will be 16 there combination will be 25 and the under root of 25 is 5 and with same pattern of V2 1 by squaring will be same 1 but the minus sign will become +ve so , 1+1 =2 so remembering that it was in √2 so the √2 =1.41 .

so at last stage as you asked v1+v2 will be what it's answer will be 5+1.41 = 6.41 But you may be know more then me .