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Sine Functions 2

Directions: Use the digits 1 to 9, at most one time each, to find the function’s greatest possible value.



What values of pi are more likely to result in a larger value?
How can equivalent fractions allow us to avoid using a number more than once?



The answer that students may initially find is sin(5*pi/6) = 1/2. That is not the greatest possible value though. If you use an equivalent value for a value of pi, more possibilities are available.

For example, sin(4*pi/6) = (√3)/2, which is larger than 1/2.

Source: Robert Kaplinsky

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