does not equal for all .
Because is not defined for or .
Determine if True or False
A. sin(sin inverse x) = x for all real numbers x
Not sure...(what is it asking?)sin of sin inverse x(can any explain what this means?)
B. The graph of y = tan inverse x has two horizontal asymptotes
True...i am sure
C. 2cosxsinx - cosx = 0
Find X between [0,2pi)
x = pi/2, 3pi/2
I am also sure about number 3.
Wanted to check.
Thanks for any help...
Okay, let's say you have .
That is, is the "inverse sine" of .
That means, "What value of do you have to take the sine of to get ?
That is, it's doing but this time you know what is and you want to find .
So doing is like saying:
"We've got this value , and we find the number it is the sine of. Then we take this number and take its sine."
You seem to understand what is, you could do question B.
The trouble is here, is that not all numbers are the sine of another number, because the only possible values for the sine of a number are between -1 and 1.
So if someone says: "What's the inverse sine of 2?" you'd reply "Don't be silly, it doesn't exist." (Not at this level of mathematics anyway.)