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KCET 2010 Math Solved Paper
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Question : 15
Total: 60
Cot
12
0
Cot
102
0
+
Cot
102
∘
Cot
66
0
+
Cot
66
∘
Cot
12
0
=
−
1
2
−
2
1
Validate
Solution:
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