If AB=AC + BC, then what do you conclude about the points A, B, C.
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Answer:
Correct option is
B
A is non-singular
Let ∣A∣=0
∴A−1 exists.
Given AB=AC
Now, pre multiplying by A−1 on both sides. we get,
A−1AB=A−1AC
⇒IB=IC
⇒B=C
So, A is non singular.
Option B is correct.
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