Question
Download Solution PDFयदि \(\rm \frac{21\ cosA+3\ sinA}{3\ cosA+4\ sinA}\) = 2 है, तो cot A का मान ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFप्रयुक्त अवधारणा:
Cosθ/ Sinθ = Cotθ
गणना:
\(\rm \frac{21\ cosA+3\ sinA}{3\ cosA+4\ sinA}\) = 2
Sin A से भाग देने पर हमें प्राप्त होता है,
⇒ (21 cot A + 3) / (3 cot A + 4) = 2
⇒ 15 cot A = 5
cot A = 1/3
∴ सही विकल्प 3 है।
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