Finding the magnitude and direction of the resultant in vector algebra.

Two vectors having equal magnitudes (A) makes an angle z with each other. Find the magnitude and direction of the resultant and prove that the resultant of two equal vectors bisects the angle between them.

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=[4A^2 Cos^2 (z/2)] (cos squared z/2)

= 2 A Cos(z/2)

The resultant will make an angle k with the ...