Answer:
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north Koreans for territory issues
The answer to this question is that the period is 6*pi/5. The period of y = sin(bx) is given by
period = 2pi/b
so with b = 3/5, that is the result.
Answer:
Upon multiplication with this matrix A, it gives a vector perpendicular to the original, with a magnitude of
times of the original.
If a 2x2 matrix A has complex eigenvalues, this is an antisymmetric matrix.
Therefore:
![A=\left[\begin{array}{cc}0&a\\-a&0\end{array}\right] \\Det|A|=a^2](https://tex.z-dn.net/?f=A%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D0%26a%5C%5C-a%260%5Cend%7Barray%7D%5Cright%5D%20%5C%5CDet%7CA%7C%3Da%5E2)
if we multiply (x,y) to this matrix A:
![A\cdot (x,y)^T=\left[\begin{array}{cc}0&a\\-a&0\end{array}\right](x,y)^T=(ay,-ax)^T=\sqrt{Det|A|} (y,-x)^T](https://tex.z-dn.net/?f=A%5Ccdot%20%28x%2Cy%29%5ET%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D0%26a%5C%5C-a%260%5Cend%7Barray%7D%5Cright%5D%28x%2Cy%29%5ET%3D%28ay%2C-ax%29%5ET%3D%5Csqrt%7BDet%7CA%7C%7D%20%28y%2C-x%29%5ET)
Answer:
u = fv/(v - f)
Step-by-step explanation:
1/f = 1/u + 1/v
1/u = 1/f - 1/v = v/fv - f/fv = (v-f)/fv
1/u = (v-f)/fv
u = fv/(v - f)