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6 Oct 2020
Double-and Half-Angle Formulas Simplify the expression by using a Double -Angle formula or a Half -Angle formula.
29.
(a) 
(b) 
Double-and Half-Angle Formulas Simplify the expression by using a Double -Angle formula or a Half -Angle formula.
29.
(a) 
(b) 
Joram GuingguingLv10
16 Dec 2020
