Question
Download Solution PDFIf \(\rm \frac{21\ cosA+3\ sinA}{3\ cosA+4\ sinA}\) = 2, then find the value of cot A
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept used:
Cosθ/ Sinθ = Cotθ
Calculation:
\(\rm \frac{21\ cosA+3\ sinA}{3\ cosA+4\ sinA}\) = 2
By dividing by Sin A we get
⇒ (21 cot A + 3) / (3 cot A + 4) = 2
⇒ 15 cot A = 5
cot A = 1/3
∴ The correct option is 3
Last updated on Jul 16, 2025
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