For the answer to the question above,
I'll write down my solution to your problem
sin(A+B) = sinAcosB + cosAsinB
<span>sin(2A) = 2sinAcosA </span>
<span>cos(2A) = 1-2sin^2A </span>
<span>sin(3x) = sin(2x+x) </span>
<span>sin(3x) = sin(2x)cos(x) + cos(2x)sin(x) </span>
<span>= 2sin(x)cos(x)cos(x) + (1-2sin^2(x))sin(x) </span>
<span>= 2sin(x)cos^2(x) + sin(x) - 2sin^3(x) </span>
<span>= 2sin(x)(1-sin^2(x)) + sin(x) - 2sin^3(x) </span>
<span>= 2sin(x) - 2sin^3(x) + sin(x) - 2sin^3(x) </span>
<span>= 3sin(x) - 4sin^3(x)
</span>My closest answer is multiple choice letter D.
Answer:
Say you feel like you twisted ur ankle or can move your foot or something in that category
Answer:
The angle between the two vectors is 60°
Explanation:
Let A and B represent the two vectors, we have;
Let = a, = b, and = c
We have by cosine rule
c² = a² + b² - 2 × a × b × cos(C)
Where, the angle "C", is the angle between the resultant of the two vectors, a and b and facing the resultant
Given that, a = b = c, we have;
a² = a² + a² - 2 × a × a × cos(C)
a² = 2·a² - 2 × a² × cos(C)
2 × a² × cos(C) = 2·a² - a²
cos(C) = a²/(2·a²) = 1/2
Therefore, angle ∠C = arccosine(1/2) = 60°
The angle between the two vectors = ∠C = 60°.
Answer:
today's species evolved from those of the past.
Explanation:
By comparing fossils of a specie from long ago to those of today, we can conclude that today's species evolved from those of the past.
- Fossils are the preserved remains of ancient life forms found within sedimentary bed layers.
- These fossils helps scientists to understand ancient life forms.
- According to the discovery of Charles Darwin, organisms have evolved and are still evolving.
- Understanding past life forms gives a way to characterize present day species better.
Answer:
Left
Explanation:
The force is applied opposite of the acceleration.