UPSC CDS Math Trigonometric Ratios and Trigonometric Identities Questions
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Question : 53 of 107
Marks:
+1,
-0
Consider the following :
1.
+
−
= 1
3.
− s i n 59 ° s e c 31 ° = 0
Which of the above are correct ?
1.
2.
−
+ c o s 28 ° c o s e c 62 ° = 1
3.
Which of the above are correct ?
[2016 CDS-II]
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