Consider the following:
1. cos 75° / sin 15° = sin 12° / cos 78° = cos 18° / sin 72° = 1
2. cos 35° / sin 55° = sin 11° / cos 79° = cos 28° / cosec 62° = 1
3. sin 80° / cos 10° = sin 59° / sec 31° = 0
Which of the above are correct?
Mathematics
2016
CDS Elementary Mathematics 2016
CDS 2016
Options
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