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Find the value of the trigonometric function tan(19π/3)

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Answer:

tan(19π/3)=√3=1.732

Explanation:

Every trigonometric function has a cycle of 2π, i.e. after 2π, the function is repeated. In fact functions tan and cot repeat after every π.

As tan(19π/3)=tan[(18π+π)/3]=tan(6π+π/3)=tan(π/3)

(as 6π is a multiple of π which is cycle for function tan)

and as tan(π/3)=√3, we have

tan(19π/3)=√3=1.732

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