carlytse621
Member
Hi, can anyone help me on this question?
What is the domain and range of:
f(x)=squ root (1-2sinx) ?
Thanks ><
What is the domain and range of:
f(x)=squ root (1-2sinx) ?
Thanks ><
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Help on finding domain and range~ >< (1 Viewer)
- Thread starter carlytse621
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Mature Lamb
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- 2015
-2sinx < 1
Then solve for x for domain
Then solve for x for domain
carlytse621
Member
Yea I got
1/2 => sinx
sin^-1 (1/2) => x
pi/6 => x => -7pi/6
5pi/6 <= x <= 2pi
-2pi <= x <= something
but I got these answe base on graph, how can I get the solution just by working out without graph?
1/2 => sinx
sin^-1 (1/2) => x
pi/6 => x => -7pi/6
5pi/6 <= x <= 2pi
-2pi <= x <= something
but I got these answe base on graph, how can I get the solution just by working out without graph?
hscishard
Active Member
The annoying problem is that x can exceed 2pi. Perhaps we need to use that general solution of trig equations? (I never got that sect. But I think you can put it here)