Category: Space & Navigation

What are the 3 trig identities?

Sine, cosine and tangent are the primary trigonometry functions whereas cotangent, secant and cosecant are the other three functions.…The reciprocal trigonometric identities are: Sin θ = 1/Csc θ or Csc θ = 1/Sin θ Cos θ = 1/Sec θ or Sec θ = 1/Cos θ Tan θ = 1/Cot θ or Cot θ = 1/Tan

What is the photosphere composed of?

What is the photosphere layer? Photosphere – The photosphere is the deepest layer of the Sun that we can observe directly. It reaches from the surface visible at the center of the solar disk to about 250 miles (400 km) above that. What are three features of the photosphere? These features include the dark sunspots,

How do you get a Euler path?

A directed graph has an Eulerian trail if and only if at most one vertex has (out-degree) − (in-degree) = 1, at most one vertex has (in-degree) − (out-degree) = 1, every other vertex has equal in-degree and out-degree, and all of its vertices with nonzero degree belong to a single connected component of the

What does well defined mean in math?

In mathematics, a well-defined expression or unambiguous expression is an expression whose definition assigns it a unique interpretation or value. Otherwise, the expression is said to be not well defined, ill defined or ambiguous. What do well-defined mean? clearly stated or described Definition of well-defined 1 : having clearly distinguishable limits, boundaries, or features a

What is the constant slope?

For example, a small slope means a small velocity; a negative slope means a negative velocity; a constant slope (straight line) means a constant velocity; a changing slope (curved line) means a changing velocity. How do you find a constant slope? The slope equals the rise divided by the run: . You can determine the

What is the lifespan of a star?

Stars live different lengths of time, depending on how big they are. A star like our sun lives for about 10 billion years, while a star which weighs 20 times as much lives only 10 million years, about a thousandth as long. Stars begin their lives as dense clouds of gas and dust. What is

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