The angle between i+j+k and j is......
Answers
Answered by
4
Answer:
90° I.e. pi/4.....
hope it helps... : )
Answered by
7
Answer:
Hey mate here is your answer ⤵⤵
Let the angle b/w (i + j ) & ( j+ k )
Cos Ø = ( i + j ) ( j + k ) / |i + j | | j + k|
| i + j | = _/(1^2 + 1 ^2 )
= _/2
|j + k | = _/(1^2 + 1 ^2 )
=_/2
Cos Ø = 1 by _/2 × _/2
Cos Ø = 1 / 2
•°• Cos Ø 1/ 2 = 60°
I hope it helps u...........
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