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What is the following quotient.

What is the following quotient.-example-1
User Sauce
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2 Answers

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I tried to do my work, and the answer I got was 2 and 7/20. As a decimal, it's 2.35.
User Niclas Von Caprivi
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Answer


(√(30)-3√(2)+√(55)-√(33))/(2)

Step-by-step explanation

Since we have radicals in the denominator, we need to rationalize our expression. To do it we just need to multiply both numerator and denominator by the conjugate of the denominator. Remember that the conjugate of a binomial is the same binomial with the sing in between changed.

Let's get our hands dirty:


(√(6)+√(11))/(√(5)+√(3))*(√(5)-√(3))/(√(5)-√(3)) =(√(30)-√(18)+√(55)-√(33))/(√(5)^2-√(15)+√(15)-√(3^2))

Now, we can simplify the denominator:


(√(30)-√(18)+√(55)-√(33))/(√(5)^2-√(15)+√(15)-√(3^2)) =(√(30)-√(18)+√(55)-√(33))/(√(5)^2-√(3^2)) =(√(30)-√(18)+√(55)-√(33))/(5-3)} =(√(30)-√(18)+√(55)-√(33))/(2)}

The only radical that we can simplify in the numerator is
√(18), which simplifies to:
√(18) =√(3^2*2) =3√(2)

So, our final quotient is:
(√(30)-3√(2)+√(55)-√(33))/(5-3)}

User Jtobelem
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