TS EAMCET · Maths · Trigonometric Ratios & Identities
\(\sqrt{3} \operatorname{cosec} 20^{\circ}-\sec 20^{\circ}\) is equal to
- A 1
- B 2
- C 3
- D 4
Answer & Solution
Correct Answer
(D) 4
Step-by-step Solution
Detailed explanation
\begin{aligned} & \sqrt{3} \operatorname{cosec} 20^{\circ}-\sec 20^{\circ}=4\left(\frac{\sqrt{3} \operatorname{cosec} 20^{\circ}}{4}-\frac{\sec 20^{\circ}}{4}\right) \\ & =4\left(\frac{\frac{\sqrt{3}}{2}}{2 \sin 20^{\circ}}-\frac{\frac{1}{2}}{2 \cos…
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