+0  
 
0
501
1
avatar+17 

Thanks a million guys! #Melody & #CPhill, your answers were so helpful, both of you are wise and nice!

But I'm still struggling with my homework 😭 

How do you solve this trig equation. Where 0< x <360

(sinx+1)2 - 2sinx = 0 

I appreciate your advices.

 Nov 25, 2015
 #1
avatar+128570 
+5

(sinx + 1)^2  - 2sinx  = 0

 

sin^2x + 2sinx + 1  - 2sinx  = 0

 

sin^2x +  1   = 0

 

sin^2x   = -1

 

Notice that the square of any non-zero value of the sine is always positive.....so.......this has no real solution(s).....!!!!!

 

 

cool cool cool

 Nov 25, 2015
edited by CPhill  Nov 25, 2015

0 Online Users