sin(a-b) ni toping, sinasinb-cosacosb, sinacob-cosasinb, sina+cosb, sinasinb-sinacosb, cos(a-b) ni toping, cosacob+sinasinb, cosacob-sinasinb, cos(a+b) ni toping, sina coburg+cosasinb, cosacob-sinasinb, sin(-a) nmaga teng, -sina, sina, cosa, -cosa, cos(-a) nmaga teng, -cosa, -sina, Cosb, cosa, tg(-a) va ctg(-a) to'g'ri ko'rsatilgan javobni ayting, tg(-a)=tra ctg(-a) =ctga, tg(-a) =-tga, ctg(-a) =-ctga

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