Find the trigonometric function values for 7 x using the graph of the unit circle. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. sin 7x = (Simplify your answer.) B. The function is undefined. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. cos 7x = (Simplify your answer.) B. The function is undefined. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. tan 7x = (Simplify your answer.) B. The function is undefined. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. cot 7x = (Simplify your answer.) The function is undefined. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
sin(7pi) = 0
because sin(any integer * pi) is always ZERO
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cos(7pi) :
This is an angle more than 2pi, so we can subtract 2pi three timesfrom it without changing the meaning
cos(pi) becomes -1
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tan(7pi) = 0
because even for tan, tan(n*pi) = 0
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cot(7pi) = 1/0
undefined
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