trigonometrik ifodalarni ayniy almashtirish
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1447859494_62317.doc . sin cos . 3 ; cos sin . 2 ; 1 sin cos . 1 2 2 a a ctga a a tga a a = = = + . 1 sin 1 . 3 ; 1 cos 1 . 2 ; 1 . 1 2 2 2 2 a ctg a a tg a ctga tga + = + = = × a 2 cos 1 - a a sin cos 1 2 ± = - a a sin cos 1 2 = - a a sin cos 1 2 - = - a a sin cos 1 2 = - a a sin cos 1 2 - = - 3 p a = , 2 3 …
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