If 3 tan θ = 2, what is the value of (3sinθ -cosθ)/(3sinθ +cosθ) ?
Answer & explanation
Correct answer: option 4
3 tan θ = 2
tan θ = \(\frac{2}{3}\)
{ we know, tan A = \(\frac{P}{B}\) }
By using pythagoras theorem ,
P² + B² = H²
2² + 3² = H²
H = √13
Now,
\(\frac{3 sinθ - cosθ }{3 sinθ + cosθ}\)
= \(\frac{3× 2/√13 - 3/√13 }{3 × 2/√13 + 3/√13 }\)
= \(\frac{3 }{9 }\)
= \(\frac{1}{3}\)