Posted by Hannah on .
Simplify the expression
1/tan^2x+1
tan^2x+1 = sec^2x = 1/sec^2x
I am not sure what 1/sec^2x is equal to

PreCal 
bobpursley,
1/sec = cos
Posted by Hannah on .
Simplify the expression
1/tan^2x+1
tan^2x+1 = sec^2x = 1/sec^2x
I am not sure what 1/sec^2x is equal to
1/sec = cos