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Question
Evaluate: `(sec 75°)/("cosec" 15°)`
Sum
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Solution
`(sec 75°)/("cosec" 15°)`
= `sec(90° - 15°)/("cosec" 15°)`
= `("cosec" 15°)/("cosec"15°)`
= 1
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Complimentary Angles for Secant ( Sec ) and Cosecant ( Cosec )
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Chapter 21: Trigonometrical Ratios [Sine, Consine, Tangent of an Angle and their Reciprocals] - EXERCISE 21 (F) [Page 334]
