What are the 7 different types of problems from trigonometry identitie How to solve a triangle? What is used when there is a triangle that cant be solved with the law of sines?

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5.1 Fundamental identities ▯ ▯ sin(x) = ▯▯▯▯ csc(x) = ▯▯▯▯ cos(x) = ▯ sec(x) = ▯ ▯▯▯▯ ▯▯▯▯ ▯ ▯ tan(x) = ▯▯▯▯ cot(x) = ▯▯▯▯ sin(-x) = -sin x sin x + cos x = 1 cos(-x) = cos x 1 + tan x = sec x 2 2 tan(-x) = -tan x 1 + cot x = csc x csc(-x) = -csc x sec(-x) = sec x cot(-x) = -cot x New identities ▯ Sin x = cos ( − ????) ▯ ▯ Cos x = sin (▯