Find the area between the curves y=|x-1| and
y= -|x-1|+1

Answer :

Firs we form a table for different value of x and y for both equation , As :
 
y  = | x - 1 |   y  = - | x - 1 | + 1  
x y x y
0 1 0 0
0.5 0.5 0.5 0.5
1 0 1 1
1.5 0.5 1.5 0.5
2 1 2 0
-0.5 1.5 -0.5 -0.5

Now we represent these points on x  -  y , plane , As :

Here Length of AC  =  1 unit and Distance ( Height ) between vertices D and line AC  = 0.5 unit  and between vertices B and line AC  = 0.5 unit 

We know Area of triangle = 12× Base × Height
So,
Area of triangle ABC  =  Area of triangle ADC  ,
And
Area of triangle ABC  = 12× AC × 12 = 12× 1 × 12 = 14 = 0.25 unit2
And
Area of triangle ADC  = 0.25 unit2
So,
Area of required ABCD  = 0.25  + 0.25  = 0.50 unit2                               ( Ans )

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