How would you find the exact value of the six trigonometric function of -7pi/4?

1 Answer
Alan P.
Jan 6, 2017

{: (sin(-(7pi)/4)=sqrt(2)/2,color(white)("XX"),csc(-(7pi)/4)=sqrt(2)), (cos(-(7pi)/4)=sqrt(2)/2,,sec(-(7pi)/4)=sqrt(2)), (tan(-(7pi)/4)=1,,cot(-(7pi)/4)=1) :}

Explanation:

Note that an angle of -(7pi)/4 is equivalent to an angle of pi/4 which is one of the standard/common angles.

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