We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.
 
+0  
 
+1
217
2
avatar+1405 

Help Me Please.

 

Imaginary Numbers

 

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

 Feb 27, 2018

Best Answer 

 #1
avatar+18138 
+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+18138 
+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+1405 
+1

Thank You!!

 Feb 27, 2018

22 Online Users

avatar
avatar
avatar