Question

simplify cos^2x+cos^2xtan^2x

Answer 1

you can take a cos^2x out making it cos^2x(1+tan^2x)
=cos^2x (sec^2x)
=(cos^2x/1)(1/cos^2x)
=cos^2x/cos^2x
=1

Answer 2

my options are
2
0
-2cot^2(theta)
2cot^2(theta)

Answer 3

welp

Answer 4

cos^2(x) + cos^2(x) tan^2(x)
rewrite tangent^2(x)
cos^2(x) + cos^2(x) [sin^2(x)/cos^2(x)]
cancel the cosines
cos^2(x)+[1/cos^2(x)]=cos^2(x)+sec^2(x)