Step-by-step explanation:
sin ∅ + 1 = cos2∅
From multiple angles in trigonometry
cos2∅ = 1 - 2sin²∅
So we have
sin∅ + 1 = 1 - 2sin²∅
sin∅ +1 - 1 + 2sin²∅= 0
sin∅ + 2sin²∅ = 0
Factor out sin∅
sin∅ ( 1 + 2sin∅) = 0
sin ∅ = 0
∅ = 0° , 180°
1 + 2sin∅ = 0
2sin∅ = - 1
sin ∅ = -1/2
∅ = 210° , 330°
The solutions are
<h3>0° , 180° , 210° , 330°</h3>
Hope this helps you
The graph of vector v with an initial point at R (–19, 6) and terminal point at S (–35, 13). Option C; v = -16i + 7j represents the linear form of RS.
<h3>How to find the vector component?</h3>
If we have given a vector v of initial point A and terminal point B
v = ai + bj
then the components form as;
AB = xi + yj
Here, xi and yj are the components of the vector.
c
Given;
The graph of vector v with an initial point at R (–19, 6) and terminal point at S (–35, 13).
v = (-35 +19)i + (13 - 6)j
v = (-16)i + (7)j
v = -16i + 7j
Thus, Option C; v = -16i + 7j represents the linear form of RS.
Learn more about vectors;
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Answer:
Step-by-step explanation: