SOLUTION: which of the following trigometric wquations is false for all of x? sin x= 2/ sqroot of 5 tan x= -100 sex x = sqroot of 3/ 7 please show work?

Question 224457: which of the following trigometric wquations is false for all of x?
sin x= 2/ sqroot of 5
tan x= -100
sex x = sqroot of 3/ 7
please show work?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
which of the following trigometric wquations is false for all of x?
sin x= 2/ sqroot of 5
tan x= -100
sex x = sqroot of 3/ 7
I suppose you mean sec(x). I don't know of a sex trig function.
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If it's sec(x) = sqrt(3/7), that's never true (not for real numbers).
sqrt(3/7) is less than 1.
sec = 1/cos
The cos would have to be greater than 1, so that's not allowed.
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