Question

it is surd or not gove solution plz​

Answer 1

Answer:

iv)-5

VIII)2.10

Step-by-step explanation:

hope it helps

please mark me BRAINLIEST plssss

Answer 2

Answer:

vi) -5

viii) Exact form :

$\bf \: \sqrt{3 + \sqrt{2} }$

Decimal Form :

$\bf \: 2.10100298$

Is it sure or not ?

-> First one is not a surd.

-> Second one is surd.

Step-by-step explanation:

$vi) \bf \: \footnotesize{3}\sqrt{ - 125}$

In this case , the value of '√' becomes 1/3.

So,

$\bf \implies \: ( - 125) ^{ \frac{1}{3} }$

$\bf \implies \{( - 5)( - 5)( - 5) \} ^{ \frac{1}{3} }$

$\bf \implies \{ - 5 ^{(3)} \}( ^{ \frac{1}{3} \}} )$

$\implies \bf \: - 5$

$viii) \sqrt{3 + \sqrt{2} }$

This cannot be simplified further.

$\bf \: final \: answer = \sqrt{3 + \sqrt{2} }$

Converting it to decimal form we get = 2.10100298

What you need to know ?

• The idea of square root was introduced by Babylonians.

• The method was used in Heron's formula at first.

• Surd is an irrational number which is represented in root form.

• Index is the exponential representation of number. Like in 5^3 , here 3 is the index.