Question

simplify the trigonometric expression

Answer 1

\[2+\tan^2x \over \sec^2x\] all -1

(how do you put -1 on the same line as the fraction?)

Should i convert the tan using the pythagorean identity and convert both sec using the reciprocal?

Answer 2

Hint: relation between tan and sec.

Answer 3

i get to sec^2(x)+1-sec^2(x).. is there a good step by step trigonometric expression solver online? I'm having trouble on these.

Answer 4

Alright, if it is -((2+tan^2x)/)sec^2x)) then that simplifies (by sec-tan relation, which is sec^2x=tan^2x+1) to -((1+sec^2x)/(sec^2x))=-1/sec^2x -1

Answer 5

That equals -cos^2x-1

Answer 6

*-cos^2(x)-1

Answer 7

Which simplifies to sin^2(x)-2