PLZ HELP E WILL MARK BRAINLIEST Prove that -tan^(2)x + sec^(2)x = 1 is an identity
and if you can show your work that would help

"princess tower" in dubai is considered the world's tallest residential building, towering to 1 0 1 101 floors! t ( n ) t(n) models the number of tenants living on floor n n of the tower. what does the statement t ( 2 0 ) = t ( c ) t(20)=t(c) mean?

How much orange juice do you need to make 2 servings of lemony orange slush?

Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?