Without using calculator, if cos(t)=5/9 and sin(t)<0, what is the value of sine (t/2)? Simplify your result.

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answerhappygod
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Without using calculator, if cos(t)=5/9 and sin(t)<0, what is the value of sine (t/2)? Simplify your result.

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Without using calculator, if cos(t)=5/9 and sin(t)<0, what isthe value of sine (t/2)? Simplify your result.
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