Asked by Jon
Find the exact value of: tan(-3pi).
Answers
Answered by
Reiny
very easy
remember that tanx = sinx/cosx
and that the sine curve has a zero for every multiple of 180º or every multiple of pi
Since -3pi is a multiple of pi, sin(-3pi) = 0
We know that the cosine cannot be zero at that same angle since the sine and cosine curves do not coincide
so tan(-3pi) = 0
remember that tanx = sinx/cosx
and that the sine curve has a zero for every multiple of 180º or every multiple of pi
Since -3pi is a multiple of pi, sin(-3pi) = 0
We know that the cosine cannot be zero at that same angle since the sine and cosine curves do not coincide
so tan(-3pi) = 0
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