Question

Өрнектің мәнін табыңдар: cos105(gradys)sin195(gradys)+sin(-135)gradys-cos135(gradys) tg18(gradys)•tg288(gradys)+sin32(gradys)•sin148(gradys)-sin302(gradys)•sin122(gradys)

Answer 1

cos105*sin195+sin(-135)-cos135*tg18*tg288+sin32*sin148-sin302*sin122=cos^2(105)+2*sin(-135)+sin^2(32)+sin^2(122)

Comments

sin^2(32)+sin^2(122)=1

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tg ол бөлек болады 2 есеп

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cos105*sin195+sin(-135)-cos135=cos^2(105)
tg18*tg288+sin32*sin148-sin302*sin122=0

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Раxмет үлкен!!!

Answer 2

cos105*sin195+sin(-135)-cos135*tg18*tg288+sin32*sin148-sin302*sin122=cos^2(105)+2*sin(-135)+1