Answer:
Step-by-step explanation:
Answer:
31 minutes
Step-by-step explanation:
Answer:
a
Step-by-step explanation:
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Answer:
540°.
Step-by-step explanation:
On a unit circle, cos θ = -1 at 180°.
However, cos θ has a period of 2π, or 360°. This means that cos θ will equal to -1 again after 2π.
To solve for the angle:
180° + 360° = 540°. This is the next angle at which cos θ = -1.
Answer:
Step-by-step explanation:
Given
The two vertices of a equilateral triangle are
Suppose the third vertex is
Side length in equilateral triangle are equal.
Similarly,
Subtract (i) and (ii)
Insert the value of in equation (ii)
So, two possible vertex are