+0  
 
0
100
1
avatar

sin(7x) = sqrt(-3)/2

Guest Jun 1, 2017
Sort: 

1+0 Answers

 #1
avatar+79853 
+1

 

sin (7x)   =  -sqrt (3) / 2

 

Note

 

sin (7x )  =   -sqrt (3) / 2  when either

 

7x    =  4 pi / 3   + 2pi*n    or     7x    =   5 pi/ 3  +  2pi *n   where n is an integer

 

Dividing both by 7, then

 

x  = 4 pi / 21 +  (2pi/7)n        or   x  =  5 pi/ 21  + (2p/7)n     where n is an integer

 

 

cool cool cool

CPhill  Jun 1, 2017

13 Online Users

avatar
avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details