Mathematics, 25.05.2021 19:20, Jackiecroce12

Find the exact value of sin(140°)cos(20º) – cos(140°)sin(20°). -1/2. -sqrt 3/2. sqrt 3/2. 1/2

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Find the exact value of sin(140°)cos(20º) – cos(140°)sin(20°). -1/2. -sqrt 3/2. sqrt 3/2. 1/2
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