SOLUTION: Please help me find the domain of the function: f(x)=(cosx-sinx)^(1/2). Df={xcR; cosx-sinx>=0}.

Question 1014385: Please help me find the domain of the function: f(x)=(cosx-sinx)^(1/2).
Df={xcR; cosx-sinx>=0}.
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
You know that at , ,, and so check intermediate values to see if .
So I would check at , , , and

True.

False.

True.
So the domain would be from to and from to inclusively and multiples.

RELATED QUESTIONS
Cosx/1-sinx - sinx/cosx = 1/cosx Prove the... (answered by Alan3354)

Prove the identity: Cosx/1-sinx - sinx/cosx = 1/cosx (answered by Alan3354)

Can you please help me verify the identity. (sinx-cosx/sinx)+(cosx-sinx/cosx)=2-secx... (answered by Alan3354)

Can you please help me simplify this: (cosx)/(1-tanx) +... (answered by Alan3354,MathTherapy)

find the value of each expression: sinx= -1/2 and cosx >0 find tanx tanx = 1... (answered by stanbon)

Find the value of each expression: sinx= -1/2 and cosx >0 find tanx tanx=1... (answered by stanbon)

hi. i don't know how to find the domain of these problems: f(x)= square root (1-sinx).... (answered by stanbon)

Consider the function f''(x) = cosx+sinx with f'(x) = 5 and f(0) = 2. What is... (answered by Alan3354)

Prove the identity {{{ (1+sinx )/cosx + cosx/(1+sinx ) = 2/cosx... (answered by ewatrrr)