-I- 4 √28 + 3√63 - 2√7 I =
ma to byc z dokładnością do 0,1
-I- 4 √28 + 3√63 - 2√7 I = ma to byc z dokładnością do 0,1 = - | -4*√(4*7) + 3*√(9*7) - 2√7 | = = - | -4*√4*√7 + 3*√9*√7 - 2√7 | = = - |- 4*2*√7 + 3*3*√7 -2√7 |= = - |- 8√7 + 9√7 -2√7 | = = - | -√7 | = = - (√7 )= ≈ - 2,64575 ≈ - 2,65
-I-4V28 +3V63 -2V7I =
= -I -4*V(4*7) +3V(9*7) -2V7 I =
=-I -4 *V4*V7 +3*V9*V7 -2V7 I =
= -I -4*2V7 +3*3V7 -2V7I =
= - I-V7 I =
= -V7 = ok.-2,6
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-I- 4 √28 + 3√63 - 2√7 I = ma to byc z dokładnością do 0,1 = - | -4*√(4*7) + 3*√(9*7) - 2√7 | = = - | -4*√4*√7 + 3*√9*√7 - 2√7 | = = - |- 4*2*√7 + 3*3*√7 -2√7 |= = - |- 8√7 + 9√7 -2√7 | = = - | -√7 | = = - (√7 )= ≈ - 2,64575 ≈ - 2,65
-I-4V28 +3V63 -2V7I =
= -I -4*V(4*7) +3V(9*7) -2V7 I =
=-I -4 *V4*V7 +3*V9*V7 -2V7 I =
= -I -4*2V7 +3*3V7 -2V7I =
= - I-V7 I =
= -V7 = ok.-2,6