alleryThe value of cosec 30 degrees is:
A2
B1
C3
D4
Answer & Solution
Correct answer: A. 2
1. cosec is the reciprocal of sin.
2. sin 30 degrees is 1 by 2.
3. So cosec 30 degrees is 2.
4. The answer is 2.
_Source: syllabus Mathematics, Ch 8 'Introduction to Trigonometry'_
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