myaj580
26.10.2020 •
Mathematics
I need help with my whole test !
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Ответ:
Ответ:
The angle between the two vectors
∝ = 64°
Step-by-step explanation:
Step(i):-
Given that the vectors
and
= 3 (i⁻ . i⁻) - 2(j⁻.j⁻) -10(k⁻.k⁻)
= 3 - 2 -10
= -9
Step(ii):-
Let '∝' be the angle between the two vectors
∝ = cos⁻¹(0.4392) = 63.947
Final -
The angle between the two vectors
∝ = cos⁻¹(0.4392) = 63.947
∝ = 64°