Question

which one is the conjugate pair for 2√5+√3? (A) -2√5+√3 (B) -2√5-√3 (C) 2√3-√5 (D) √3+2√5​

Answer 1

Complex conjugate

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In mathematics, the complex conjugate of a complex number is the number with an equal real part and an imaginary part equal in magnitude but opposite in sign. That is, (if a and b are real, then) the complex conjugate of {\displaystyle a+bi}{\displaystyle a+bi} is equal to {\displaystyle a-bi.}{\displaystyle a-bi.} The complex conjugate of {\displaystyle z}z is often denoted as {\displaystyle {\overline {z}}}{\overline {z}}.

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Answer 2

Answer:

D) √3+2√5

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