SOLUTION: could you please help me with this question? Determine the non-permissible values for the following expression: sin(x)+1/cos^2(x)-1

Question 1011910: could you please help me with this question?
Determine the non-permissible values for the following expression: sin(x)+1/cos^2(x)-1

Found 2 solutions by Boreal, macston:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
sin(x)+1/cos^2(x)-1,
cos^2 ( x)-1=sin^2x
it occurs whenever cos x=1 or sin^2 x=0
That occurs at 0 and pi on the interval (0,2pi)
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
.
The non-permissible values would cause
division by zero (undefined), so:
.
is not permitted.
.

.

.

.
=+-
.

.
ANSWER: Non-permissible values are x=0
degrees or x=180 degrees.

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