(Un intreg si 1 pe 3 + 5 supra 7 ) + (11supra 3 - 12 supra 7) = ?
3 intregi si 1 supra 11 - (2 intregi si 2 supra 23 + 23 supra11 ) - 20 supra 23)
(3 - radical de 5) + (radical de 5 - 4 ) = ?
(1 +2radical2 ) - (3radical2) - 7 ) - (8 - radical 2) VA ROG HELP

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Răspunsuri

2014-10-14T18:39:51+03:00
A) (1intreg  \frac{1}{3}  \frac{5}{7} )+( \frac{11}{3} - \frac{12}{7} )=
( \frac{5}{3}  \frac{5}{7} ) + ( \frac{11}{3} - \frac{12}{7} )
( \frac{35}{21}  \frac{15}{21} ) + (  \frac{77}{21} - \frac{36}{21} )
 \frac{50}{21}  \frac{41}{21} = \frac{91}{21}
b)(1+2√2) - (3√2) - 7 - (8-√2)
(1+8) - ( 18) -7-(8-2)
9-18-13=-22
si celelalte boss ?
aa acum am vazut ca mai era una :)) (3-√5)+(√5-4)=9-5+5-4=5