Question

Two vectors have magnitudes 3 unit and 4 unit
respectively. What should be the angle between them if
the magnitude of the resultant is (a) 1 unit, (b) 5 unit
and (c) 7 unit.
יאן
obou
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Answer 1

Answer:

Solution :

<br>&

<br>(a). If R= 1 unit<br> then

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<br>

<br>

<br>

<br> (b).

<br>

<br>

<br>

<br>

<br> Hence angle between them

Explanation:

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