Question

The angle between i+j+k and j is......

Answer 1

Answer:

90° I.e. pi/4.....

hope it helps... : )

Answer 2

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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