Question

VA ROG MULT ESTE FOARTE URGENT

Answer 1

a)  a = - 5;     b + c = 11

3 a + b√2 + c√2 = 11√2 - 15

= 3 × ( - 5 ) + √2 × ( b + c ) =

= - 15 + √2 × 11 =

= 11√2 - 15

________________________

b)   a + b = 7;   b + c = - 3

2 a + 5 b + 3 c = 5

= 2 a + 2 b + 3 b + 3 c =

= 2 × ( a + b ) + 3 × ( b + c ) =

= 2 × 7 + 3 × ( - 3 ) =

= 14 - 9 =

= 5

__________________

c)

3 a + 2 b   - c = 10

5 a + 7 b + 6 c = 2

__________________ adun relatiile

8 a + 9 b + 5 c = 12

___________________________________________

d)

4 m - 3 n - 5 = 0

( 11 - 8 m + 6 n )¹⁰⁰=  1

= [1 -  2 × ( 4 m - 3 n - 5 ) ]¹⁰⁰ =

=  ( 1 - 2 × 0 )¹⁰⁰ =

= 1¹⁰⁰ =

= 1

Answer 2

Rezolvarea in atasament