Simplification of an Expression with Radicals

MathematicsRadical ExpressionsEasy

Published:

$$\frac{2}{2\sqrt{5} + 3\sqrt{2}}$$

This question includes visual content: The image shows a mathematical fraction oriented vertically upside down. The numerator is 2 and the denominator contains the sum 2*sqrt(5) + 3*sqrt(2).

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Step by Step Written Solution

1
Step 1

Merhaba Jessie, bu soruda paydada köklü ifadeler bulunan bir kesri sadeleştirmemiz yani paydayı rasyonel yapmamız isteniyor.

Paydayı Rasyonel Yapma

2
Step 2

İfademiz iki bölü iki kök beş artı üç kök iki şeklinde. Paydadaki köklerden kurtulmak için paydayı eşleniğiyle çarpmalıyız.

$$\frac{2}{2\sqrt{5} + 3\sqrt{2}}$$
3
Step 3

Bu ifadenin eşleniği, aradaki artı işaretini eksi yaparak bulduğumuz iki kök beş eksi üç kök iki ifadesidir. Kesrin hem payını hem paydasını bu ifadeyle genişletelim.

4
Step 4

Payda kısmında iki kare farkı özdeşliğini kullanabiliriz. Yani birincinin karesi eksi ikincinin karesi.

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About This Question

Subject
Mathematics
Topic
Radical Expressions
Difficulty
Easy

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