If sinx + cosx = 0 andx lies in the fourth quadrant, find sinx and cosx.
Given sinx + cosx = 0 andx lies in fourth quadrant.
⇒sinx = -cosx
∴ tanx = -1
In fourth quadrant, cosx and secx are positive and all other ratios are negative.
We know that 
4
If sinx + cosx = 0 andx lies in the fourth quadrant, find sinx and cosx.
Given sinx + cosx = 0 andx lies in fourth quadrant.
⇒sinx = -cosx
∴ tanx = -1
In fourth quadrant, cosx and secx are positive and all other ratios are negative.
We know that