[cos(1)-cos(9)]*[cos(2)-cos(8)]*...*[cos(9)-cos(1)]=? please help!

Asked on by zimzum95

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beckden | High School Teacher | (Level 1) Educator

Posted on

One of the factors in your expression will be [cos(5)-cos(5)]

This is zero and by the zero product principle anyting times zero is zero so the answer is 0


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