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sqrt(s+2 sqrt(6))+sqrt(8-2 sqrt(15))

Question

sqrt(s+2 sqrt(6))+sqrt(8-2 sqrt(15))

Solution

Verificación de expertos
4.5 (219 Votos)
Dafne Avançado · Tutor por 1 anos

Resposta

To simplify the expression , we need to find values of that make the expression simpler.First, let's consider the term . We can try to express it in the form .Assume: Squaring both sides: By comparing rational and irrational parts, we get: Solving these equations: The solutions to these equations are the roots of the quadratic equation: Solving this quadratic equation: Thus, and . Therefore: Now, consider the term . We want to find such that: Squaring both sides: By comparing rational and irrational parts, we get: Solving these equations: The solutions to these equations are the roots of the quadratic equation: We need to find such that the roots are real numbers. Let's assume and : Thus: Putting it all together: Therefore, the simplified form of the given expression is: