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A unit vector in xy-plane that makes an angle of 45(degree) with the vector i(cap)+j(cap) and an angle of tan(inverse)(4/5) with the vector 3(icap)-4(jcap) is...

A unit vector in xy-plane that makes an angle of 45(degree) with the vector i(cap)+j(cap) and an angle of tan(inverse)(4/5) with the vector 3(icap)-4(jcap) is...

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2 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
8 years ago
Hii



Use dot product in each case to find out the magnitude of respective axis values.

Two conditions are given and so we have two variables to find out which is very easy to find now




Thanks
Pritesh
24 Points
8 years ago
Thankyou........!

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