sin12° sin48° किसके बराबर है?

This question was previously asked in
NDA-II 2024 (Maths) Official Paper (Held On: 01 Sept, 2024)
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Answer (Detailed Solution Below)

Option 3 :
Free
NDA 01/2025: English Subject Test
30 Qs. 120 Marks 30 Mins

Detailed Solution

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अवधारणा:

गुणनफल-से-योग सूत्र:

  • गुणनफल-से-योग सूत्र साइन और कोसाइन के गुणनफल को योग के रूप में व्यक्त करने के लिए उपयोग किए जाते हैं।
  • साइन के लिए, सूत्र निम्नवत है:

 

गणना:

⇒ sin12° . sin48° =

=

=

विकल्प (c) सही है। 

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