Question

Which of the following trigonometric ratios will have the same value as sec(${47}^{\circ }$)?

• A. $cosec\left({43}^{\circ }\right)$
• B. $sec\left({43}^{\circ }\right)$
• C. $cosec\left({47}^{\circ }\right)$
• D. none of the above

Answer 1

The correct option is A

$cosec\left({43}^{\circ }\right)$

sec(${47}^{\circ }$)=sec(${90}^{\circ }-{43}^{\circ }$)=cosec${43}^{\circ }$