+0  
 
+1
177
2
avatar+1397 

Help Me Please.

 

Imaginary Numbers

 

\(\sqrt{-49} + \sqrt{-64}\)

 Feb 27, 2018

Best Answer 

 #1
avatar+15350 
+1

sqrt (-49) + sqrt (-64)=

sqrt(49 x (-1))  + sqrt( 64 x (-1)

= 7 x sqrt(-1)  + 8 sqrt(-1)              (remember:  sqrt(-1)  is  i  )

= 7i + 8i

= 15 i

 Feb 27, 2018
 #1
avatar+15350 
+1
Best Answer

sqrt (-49) + sqrt (-64)=

sqrt(49 x (-1))  + sqrt( 64 x (-1)

= 7 x sqrt(-1)  + 8 sqrt(-1)              (remember:  sqrt(-1)  is  i  )

= 7i + 8i

= 15 i

ElectricPavlov Feb 27, 2018
 #2
avatar+1397 
+1

Thank You!!

 Feb 27, 2018

14 Online Users

avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.