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sec A is the reciprocal of:

Asin A
Btan A
Ccot A
Dcos A
Answer & Solution
Correct answer: D. cos A
1. sec, cosec and cot are the reciprocal ratios. 2. cosec pairs with sin and cot pairs with tan. 3. So sec A is the reciprocal of cos A. 4. The answer is cos A. _Source: syllabus Mathematics, Ch 8 'Introduction to Trigonometry'_
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