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Advocard [28]
3 years ago
5

6.Angle 30degrees + x is equal to 180 degrees. Find x

Mathematics
1 answer:
Harrizon [31]3 years ago
6 0
The answer is 150 because 30+150=180
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718.012 in expanded form and written form
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Suppose that the trace of a 2×2 matrix a is tr(a)=15 and the determinant is det(a)=50. find the eigenvalues of
IrinaK [193]
Recall that the characteristic polynomial of a 2x2 matrix \mathbf A=\begin{bmatrix}a&b\\c&d\end{bmatrix} is

\det(\mathbf A-\lambda\mathbf I)=\begin{vmatrix}a-\lambda&b\\c&d-\lambda\end{vmatrix}=(a-\lambda)(d-\lambda)-bc=\lambda^2-(a+d)\lambda+(ad-bc)

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We're given that the trace is 15 and determinant is 50, so the characteristic polynomial for the matrix in question is

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\lambda^2-15\lambda+50=(\lambda-5)(\lambda-10)=0\implies\lambda=5,\lambda=10
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2 years ago
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5646534 + 746386785634986789376589674987654<br> REPOST LOL
Tresset [83]

Answer:

7.4638679e+32

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5646534 + 746386785634986789376589674987654

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