radicali nr1
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LICEUL CU PROGRAM SPORTIV IAŞI NUME ELEV …………………………………… CLASA a VII-a ………… TEST-RADICALI (nr. 1) 1. Se cons!er" n#$ere%e rea%e &' 7 √ 5 ' 2 √ 5 . Ca%c#%a* + a. | x| '…………………… c. - & '……………………………………. ,. x + y =¿ ………………………….. !. y 2 =¿ ……………………………………… .Se cons!er" n#$ere%e #' 4 √ 6 ' - √ 3 . Ca%c#%a*+ a. | v| '……………………………. c. u ∙ v '……………………………………. ,. u :v =¿ ………………………….. !. v 3 =¿ ……………………………………… . Ca%c#%a* $e!a ar/$e/c" a n#$ere%or √ 20 +√ 7 2 √ 45 - √ 7 . ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… 0. Co$ ara* n#$ere%e a' 1 √ 5 ,' 1 √ 6 ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… 2. Ca%c#%a* $e!a 3eo$e/rc" a n#$ere%or+ 3 √ 21 7 √ 21 ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… ……………………………………………………………………………………………….. 4. Ca%c#%a* ( 15 √ 14 ) ∙ ( 3 √ 28 − √ 63 ) + ( 2 √ 10 ) : ( √ 80 − 2 √ 45 ) ………………………………………………………………………………………………… ………………………………………………………………………………………………… ………………………………………………………………………………………………… …………………………………………………………………………………………………
Transcript of radicali nr1
LICEUL CU PROGRAM SPORTIV IAI NUME ELEV CLASA a VII-a TEST-RADICALI (nr. 1)
1. Se consider numerele reale x= i y=. Calculai :a. = c. y - x =.b. .. d.
2. Se consider numerele u= i y= -2. Calculai:a. =. c. =.b. .. d.
3. Calculai media aritmetic a numerelor i - .4. Comparai numerele a= i b= 5. Calculai media geometric a numerelor: i ..6. Calculai ..7. Dac a= artai c aQ.
