Question 1027371
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If cos t = 8/9, find all possible values of sin t.
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sin(t) = +/-{{{sqrt(1 - cos^2(t))}}} = +/-{{{sqrt(1 - (8/9)^2))}}} = +/-{{{sqrt((81-64)/81)}}} = +/-{{{sqrt(17/81)}}} = +/-{{{sqrt(17)/9}}}.