Can you make sure I did these right? If not can you tell me where I went wrong? Thanks.
1) sin(x)- 2sin^2(x)= 0
I factored out sinx to get sinx (1-2sinx)=0
So that gives me sinx =0
and (1-2sinx)=0 --- sinx= 1/2
2) sinx= cos2x
Divide by cosx to get sinx/ cosx = 2
Then i look on unit circle and see that pi/4 and 5pi/4 match this
3) tanx + secx =sqare root (3)
I changed it to read (sinx/cosx) + (1/cosx) = the square root of (3)
This simplifies to sinx/ cosx = the square root of (3)
1) sin(x)- 2sin^2(x)= 0
I factored out sinx to get sinx (1-2sinx)=0
So that gives me sinx =0
and (1-2sinx)=0 --- sinx= 1/2
2) sinx= cos2x
Divide by cosx to get sinx/ cosx = 2
Then i look on unit circle and see that pi/4 and 5pi/4 match this
3) tanx + secx =sqare root (3)
I changed it to read (sinx/cosx) + (1/cosx) = the square root of (3)
This simplifies to sinx/ cosx = the square root of (3)