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valentina_108 [34]
2 years ago
12

PLEASE HELP (100 POINTS)

Mathematics
1 answer:
omeli [17]2 years ago
6 0

\\ \rm\Rrightarrow 2sin^2x=1-cosx

\\ \rm\Rrightarrow 2sin^2x=1-1+sin^2x

\\ \rm\Rrightarrow 2sin^2x-sin^2x=0

\\ \rm\Rrightarrow sin^2x=0

\\ \rm\Rrightarrow sinx=0

\\ \rm\Rrightarrow x\in n\pi

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