The value of tan(–405°) is :A. 1B.

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The value of tan(–405°) is :

A. 1

B. –1

C. ∞

D. 0

Answer:

Solution: Formula: tan(–ϴ) = – tan ϴ and tan (360° + ϴ) = tan ϴ ∴ tan(–405°) = – tan 405° = – tan(360° + 45°) = – tan 45° = – 1

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