Mathematics, 26.05.2020 02:03, hsbhxsb
Find the angle between u =the square root of 5i-8j and v =the square root of 5i+j.
Answers: 2
and 
is approximately 
radians, which is equivalent to approximately 
.
denotes the angle between 
and 
(assume that 
or equivalently 
,) then:
.
and the first component of 
while the second component of 
. The product of these two second components is 
.
.
.
.Angle between the two vectors
.
and 
(
and 
.) That is: 
.
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Find the angle between u =the square root of 5i-8j and v =the square root of 5i+j....
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