Answer :

Final answer:

The square root of -49 is equivalent to expressions such as 7i, 7 times the square root of -1, and 0 + 7i (in terms of complex numbers). This involves important mathematical concepts such as imaginary numbers and complex numbers.

Explanation:

The given expression is Sqrt-49, which represents the square root of -49. In mathematics, dealing with square roots involves some important concepts. Specifically, the square root of a negative number is imaginary and is expressed using the term 'i', where i is the square root of -1. So, to find the square root of -49, we can rewrite it as Sqrt(-1*49), which simplifies to 7i.

As for equivalent expressions, we can express the square root of -49 as follows:

  • 7i
  • 7 times the square root of -1
  • 0 + 7i (in terms of complex numbers, where the real part is 0)

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