Question
Download Solution PDFयदि sec x – cos x = 4 हो, तो
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
sec x – cos x = 4
प्रयुक्त अवधारणा:
Cos x =
गणना:
माना cos x = m
⇒ sec x – cos x = 4
⇒
⇒
⇒ 1 - m2 = 4m
⇒ m2 + 4m -1 = 0
ऊपर दिए गए समीकरण के मूल ज्ञात करते हैं:
⇒ m =
⇒ m =
⇒ m =
मान ज्ञात करते हैं
⇒
उपरोक्त समीकरण में m का मान रखने पर:
⇒
⇒ √5 + 2 + √5 - 2 =
इसलिए,
Last updated on Jul 12, 2025
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