ExamBro
ExamBro
AP EAMCET · Maths · Trigonometric Ratios & Identities

If \(\sec \theta+\tan \theta=2 / 3\), then in which quadrant does \(\theta\) lie in?

  1. A I
  2. B II
  3. C III
  4. D IV
Verified Solution

Answer & Solution

Correct Answer

(D) IV

Step-by-step Solution

Detailed explanation

\[ \begin{aligned} & \text { } \sec \theta+\tan \theta=\frac{2}{3} \\ & \Rightarrow \sec \theta-\tan \theta=\frac{3}{2} \end{aligned} \] Eqs. (i) + (ii) \[ \Rightarrow \quad 2 \sec \theta=\frac{13}{6} \Rightarrow \sec \theta=\frac{13}{12} \] Eqs. (i) -(ii)…