Question
Download Solution PDFदिया गया है कि (1 + cos2A) = 3sinA.cosA हो, तो cotA का मान क्या है?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDF(1 + cos2A) = 3sinA.cosA
cos2A द्वारा विभाजित करके;
⇒ (1 + sec2A) = 3tanA
हम जानते हैं कि: sec2A = (1 + tan2A)
⇒ 2 + tan2A = 3tanA
⇒ tan2A – 3tanA + 2 = 0
⇒ (tan A – 1) (tan A – 2) = 0
⇒ tan A = 1 या 2
∴ cot A = 1 या ½Last updated on Jun 13, 2025
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