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निम्न दो (02) प्रश्नों के लिए निम्नलिखित पर विचार कीजिए :
मान लीजिए कि फलन f(x) = x2 - 1 है।
फलन f(x) और x-अक्ष द्वारा परिबद्ध क्षेत्र का क्षेत्रफल क्या है?
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फलन
अभीष्ट क्षेत्रफल, -1 से 1 तक फलन के निश्चित समाकल द्वारा दिया गया है:
-1 से 1 तक समाकल का मान ज्ञात कीजिए:
∴ क्षेत्रफल
अतः सही उत्तर विकल्प 3 है।
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