Answer (Detailed Solution Below)

Option 4 : 0
Free
NDA 01/2025: English Subject Test
30 Qs. 120 Marks 30 Mins

Detailed Solution

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अवधारणा:

सम और विषम फलनों के समाकलन के नियम,

यदि फलन सम या विषम है और अंतराल [-a, a] है तो हम इन नियमों को लागू कर सकते हैं:

  • जब f(x) सम है  ⇔ 
  • जब f(x) विषम है ⇔  

गणना:

माना f (x) = x5 sin4 x 

f (-x) = (-x)5 sin4 (-x) = -x5 (-sin x )= -x5 sin4 x 

⇒ f(-x) = - f(x) 

तो f(x) एक विषम फलन है। 

हम जानते हैं कि, जब f(x) विषम है ⇔  

इसलिए ,  = 0 .  

सही विकल्प 4 है।

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