I'm having trouble understanding vectors... can some one explain this?

given a = (8,6), b- (,3), c=(1,2) and d= (-3,-6)





find the magnitude of a.





determine if b and d are equal.





find the coordinates of a + b.

I'm having trouble understanding vectors... can some one explain this?
what the heack is that
Reply:maganitude of a = ( 8^2+6^2)^1/2 = (64+36)^1/2 = (100)^1/2 = 10 units


please check the coordinates of b.(_,3)


to check whether b and d are equal u have to first find their magnitude.


use the formula: (x^2+y^2)^1/2 to find magnitude. if the magnitude of b and d comes out to be same then they are equal otherwise not.


coordinate of a+b: x coordinate=(8+x coordinate of b)


y coordinate=(6+3)