If area of shaded portion in figure A is A1 and that of shaded portion in figure B is A2. Then,
A
A1>A2
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B
A1<A2
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C
A1=A2
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D
Insufficientinformation
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Solution
The correct option is CA1=A2 As we already know the area under the curve is given by the integral ∫baf(x).dx. For the first figure the function in integral is f(x) = |x| and the concerned interval is from 0 to 1 ∴ Area of the first figure = ∫10x.dx=A1. Also, for the second figure the function in integral is f(x) = |t| and the concerned interval is from 0 to 1 Area of the second figure = ∫10t.dt=A2. As seen in the video if we change just the variable of the integral without changing the nature of the function or the limits, the value of the integral doesn’t change. Here the function is modulus which is same for both the figures. Hence, ∫10|x|dx=∫10|t|dt A1=A2