7 If sin t = and is in quadrant I, find the exact value of sin (2 t), cos (2 t), and 9 tan (2 t) algebraically without solving for t. Enclose numerators and denominators in parentheses. For example, (a - b)/(1+n). sin (2 t) = 80 cos (2 t) = tan (2 t) 庙 5

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