Practicing Success
If $5 \sin \theta=4$, then the value of $\frac{\sec \theta+4 \cot \theta}{4 \tan \theta-5 \cos \theta}$ is: |
2 $\frac{3}{2}$ $\frac{5}{4}$ 1 |
2 |
sinθ = \(\frac{4}{5} By using pythagoras theorem , P² + B² = H² 4² + B² = 5² B² = 25 - 16 B² = 9 B = 3 Now, \(\frac{ secθ + 4cotθ }{4tanθ - 5cosθ}\) = \(\frac{ 5/3 + 4 × 3/4 }{4× 4/3 - 5×3/5}\) = \(\frac{ 5/3 + 3 }{16/3 - 3}\) = \(\frac{ 14 }{7}\) = 2 |