Find sin 2x, cos 2x, and tan 2x if sin x=-1/✓10 and x terminates in quadrant III.

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.

your answer is the frist one

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