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Mathematics, 31.12.2019 04:31 laurieburgess804

Which expression is equivalent to
(sin x + 1)(sin x − 1)?
a.)cos^2x

c.)cos^2x+ 1
d.)cos^2x − 1
+ 1

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Which expression is equivalent to
(sin x + 1)(sin x − 1)?
a.)cos^2x

c.)...

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