All of the following are pythagorean identities except a. sec^2(x)+1=tan^2(x) b.1+cot^2(x)=csc^2(x) c. sin^2(x)+cos^2(x)=1 d. tan^2(x)+1=sec^2(x)

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.

i think it is 70

step-by-step explanation: