Question: Simplify the expression by using sum or difference identities. tan tan (12) + tan 4 1 - tan tan 12 4 12 + tan

Simplify the expression by using sum or difference identities. tan tan (12)

Simplify the expression by using sum or difference identities. tan tan (12) + tan 4 1 - tan tan 12 4 12 + tan 1 - tan 12 tan 4 4

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