Resultant of two vectors of math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymn5...

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Resultant of two vectors of math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymn5/mn/math units and math xmlns=http://www.w3.org/1998/Math/MathML class=wrs_chemistrymn8/mn/math units is making an angle of math class=wrs_chemistry xmlns=http://www.w3.org/1998/Math/MathMLmsupmn53/mnmi mathvariant=normalo/mi/msup/math from first vector.
(a) Find angle between two vectors.
(b) Find magnitude of their resultant.
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