JEE Main · 2023 · 25 Jan 2023 · Shift 2 · Area Under Curves

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If , where and are coprime natural numbers, then is equal to ______.

Answer: 20

Solution

Because changes sign at , split the integral: , using . The first piece equals and the second equals , so the total is . Matching with gives the coprime pair , so .

JEE Main · 2023 · 25 Jan 2023 · Shift 2 · Integer answer

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