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Simplify the expressions. √9a^2, if a<0 Please help with this
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25 votes
Simplify the expressions.

√9a^2, if a<0

Please help with this

User Johnny Kutnowski
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1 Answer

8 votes

CSC (x) , x = π

TAN (x) , x = -π

COS (x) , x = π/2

Explanation:

User Tspano
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