If I is a unit matrix, then 3I will be

A unit matrix

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A triangular matrix

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A scalar matrix

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None of these

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Solution

The correct option is C A scalar matrix
It is based on fundamental concept.

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Similar questions

I

3 I

I

∣ ∣ ∣ ∣ \begin{matrix} 6 i & - 3 i & 1 4 & 3 i & - 1 20 & 3 & i \end{matrix} ∣ ∣ ∣ ∣ = x + i y

I f ∣ ∣ ∣ ∣ \begin{matrix} 6 i & - 3 i & 1 4 & 3 i & - 1 20 & 3 & i \end{matrix} ∣ ∣ ∣ ∣ = x + y i

P = [\begin{matrix} 4 + 3 i & - i i & 4 - 3 i \end{matrix}]

i = \sqrt{-} 1

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