Question

Va rog multtttttttttt !!!!!!! Dau 20 de puncte + coroana!!!!!! Exerciriul 3, 6 si 8 !!!!!!! :(((( Va rog din inima!!! Doar 3, 6 si 8 !!!!! :((

Answer 1

3)
a)(0,3)⁵ × (0,3)² ×(0,3)⁴=(0,3)¹¹=3¹¹/10¹¹
b)(0,2)⁴ × (0,2)⁵ ×(0,2)³=(0,2)¹²=2¹²/10¹²

6.
a) (0,3)⁴ -(0,2)⁵×10² =3⁴/10⁴ ×10² -2⁵/10⁵×10²=
=81/10²-32/10³=0,81-0,032=0,778
b)1,4²-1,1²=(1,4+1,1)(1,4-1,1)=2,5×0,3=0,75
c)2014⁰+0²⁰¹⁴ = 1+0=1
d) 2,5²+7²=6,25+49=55,25

8)
E=a²+2ab+b²
a=0,3
b=0,7
E=a²+2ab+b² =0,3²+2×0,3×0,7+0,7²=0,09+0,42+0,49=1

a=1,2
b=0,8
E=a²+2ab+b² =1,2²+2×1,2×0,8+0,8²=1,44+1,92+0,64=4

a=1,4
b=0,6
E=a²+2ab+b² =1,4²+2×1,4×0,6+0,6²=1,96+1,68+0,36=4

a=2,2
b=1,8
E=a²+2ab+b² =2,2²+2×2,2×1,8+1,8²=4,84+7,92+3,24=16