Guys again I need your help this is a math and this is the question
Evaluate (m15)³
Simplify the term az a5 a-5
a-1 a-7
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Answers
Answered by
1
Answer:
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Step-by-step explanation:
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Answered by
1
Answer:
Given
A
2
=5A−7I
AAA
−1
=5AA
−1
−7IA
−1
AI=5I−7A
−1
AI=5I−7A
−1
A
−1
=
7
1
(5I−A)
Statement I is true.
A
3
−2A
2
−3A+I=A(5A−7I)−2A
2
−3A+I
=5A
2
−7A−2A
2
−3A+I
=3A
2
−10A+I
=3(5A−7I)−10A+I
=5A−20I
=5(A−4I)
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