Matematică
roxanad97
2016-09-29 11:31:39
exercitiul 8 punctele d,e si f va rog foarte mult !
Răspunsuri la întrebare
denyd9844
2016-09-29 12:30:53

8d. 121/25·(3/99)²+3/4:[37·3/4-99/4]= =121/25·(1/33)²+3/4:(111/4-99/4)= =11²/25·1/(3²·11²)+3/4·4/12= =1/(9·25)+1/4=4/900+225/900=229/900=0,25(4) e. [1+(316-31)/90+316/100]·25/4+1= =[1+285/90+79/25]·25/4+1= =[1+19/6+79/25]·25/4+1 =(150/150+475/150+474/150)·25/4+1= =1099/150·25/4+1= =1099/24+24/24=1123/24=46 19/24 f. 2+(11/5)²:32/10·(4-11/2·9/22)-207/320= =2+121/25·10/32 ·(4-9/4)-207/320= =2+121/5·2/32·(16/4-9/4)-207/320= =2+121/5·1/16·7/4-207/320= =2+121·7/320-207/320= =640/320+847/320-207/320= =1280/320=320/80=32/8=4

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