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MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

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dobivamox cos + y cos + z cos p = 0; ()tzv. normalni (ili Hesseov) oblik jednadbe ravnine.Kako dobiti ovaj novi oblik jednadbe ravnine iz općejednadbe ravnine?Ax + By + Cz + D = 0 1 p A 2 + B 2 + C ; 2A p A 2 + B 2 + C 2 x +C p A 2 + B 2 + C 2 z +B p A 2 + B 2 + C 2 y+D p A 2 + B 2 + C 2 = 0;Pri cemu uzimamo onaj predznak korijena da budeD p A 2 + B 2 + C 2 =tj. negativan broj (p = d (; O) > 0). Dakle, uzimamosuprotan predznak od D:p

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