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1.) Identify the exact value for cos(2x) given that sin(x) = - and cos(x)

1.) Identify the exact value for cos(2x) given that sin(x) and cos(x) < O (Solve the problem twice using two different cos(2x) identities) 1.) Identify the exact value for cos(2x) given that sin(x) and cos(x) < O (Solve the problem twice using two different cos(2x) identities)