Question

Calculați :
b) radical 49 =
c) radical 256=
d) radical 3 × radical 2=
e) radical 1,44=
f) | radical din 15 |=
g) | - 15,78| =
h) radical 9ᵈᵒⁱ - 6ᵈᵒⁱ + 2ᵈᵒⁱ
i) radical 100 × radical 16-radical 144


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Answer 1

Răspuns:

Explicație pas cu pas:

b) = 7
c) = 16

d) = $\sqrt{6}$

e) =  daca ai vrut sa scrii $\sqrt{144}$ = 12 sau daca e $\sqrt{1,44} = \sqrt{\frac{144}{100} } =\sqrt{\frac{36}{25} } = \frac{6}{5}$

f)  =  |$\sqrt{15}$| = $\sqrt{15}$

g) = |-15,78| = 15,78
h) = este formula de calcul prescurtat (a-b)^2 => $\sqrt{(9-2)^{2} } = 9-2 = 7$

i) = 10 x 4 - 12 = 40 - 12 = 28

Answer 2

b) radical 49 = 7
c) radical 256= 16
d) radical 3 × radical 2= 3√2
e) radical 1,44= 1,2
f) | radical din 15 |= 3
g) | - 15,78| = 15,78
h) radical 9ᵈᵒⁱ - 6ᵈᵒⁱ + 2ᵈᵒⁱ= 9⁴-6⁴+2⁴=6561-1296+16=5241
i) radical 100 × radical 16-radical 144= 10√16-12√144=10√16-12√144=40-12√36=40-12√36=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40-6√9=40