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Vlad [161]
2 years ago
9

Can someone help me please

Mathematics
2 answers:
wolverine [178]2 years ago
7 0

Answer:

90 degrees

angles are measured in degrees

bogdanovich [222]2 years ago
6 0

Answer:it's 90degrees,because the angles are set on a protractor

Step-by-step explanation:

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U₂₁ and U₂₂ fits in the line of upper triangular

Step-by-step explanation:

As explain in the question

An upper triangular matric is square matrix with all zeros below its daignal. A lower triangular matrix is a square matrix with all zeros above its diagonal.

(as shown in the attached image)

(a)for all 3×3 upper triangular matirices U, verify that U2 is also upper triangular

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the element in the upper triangular are 1,2,3,5,6,9 (U₁₁, U₁₂, U₁₃; , U₂₂, U₂₃, U₂₂)

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If the probability is higher, it has a more likely chance to occur.

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