Find the sum of the opposite and inverse numbers of √5-2.
| September 7, 2021 | education
First, let’s find the opposite number to our given value, for this we only need to change the sign of the expression:
√5 + 2 and 1 / (- √5 – 2).
Reduce the fraction, calculate the sum, and get rid of the irrationality in the denominator:
√5 + 2 – (√5 – 2). There is a minus sign in front of the brackets, so:
√5 + 2 – √5 + 2 = 4.
Answer: 4.
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