Math, asked by jyotiswarup122, 2 months ago

sin x sin y – cos x cos y +1 = 0 then find out the value of sin (x+y) . 21. Let A and B be sets, if A∩X=B∩X=∅ and A∪X=B∪X for some sets X, Prove that A=B​

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Answered by akhileshsinghc53
1

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