Question

Resolva as equações em IR

Answer 1

a) x+5=2

x+5= -2

x= -3

x+5=-2

x=-3

x=-7

x'=-7

x''=-3

b) 10 * |y| = 48

|y| = 24/5

y= 24/5

y= -24/5

y'= -24/5

y''= 24/5

c) 8=z = 4

8-z = -4

z=4

8-z= -4

z= 4

z=12

z'= 4

z'= 12

d) |3w-1| = w+3

3w - 1 - w = 3  ,  3w - 1 ≥ 0

- (3w-1) - w = 3  ,  3w - 1 < 0

w = 2  ,  3w - 1 ≥ 0

-(3w - 1) - w = 3  ,  3w - 1 < 0

w = 2  ,  w ≥ $\frac{1}{3}$

- (3w - 1) - w = 3  ,  3w - 1 < 0

w = -1/2  ,  3w - 1 < 0

w = 2  ,  w ≥ -1/3

w= -1/2  ,  w < 1/3

w = 2

w = -1/2  ,  w < 1/3

w = -1/2

w = 2

w = -1/2

w' = -1/2

w'' = 2