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Find the sine, cosine and tangent of A. Reduce all fractions and radicals

Find the sine, cosine and tangent of A. Reduce all fractions and radicals-example-1
User Albertina
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AC = BC = 4
AB = 4√2

sinA = BC/AB = 4 / 4√2 = 1/√2 = √2 / 2
cosA = AC/AB = √2 / 2
tanA = BC/AC = 4/4 = 1
User Vincent Bacalso
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