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UPSC NDA I 2024 Mathematics Solved Paper
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© examsnet.com
Question : 43
Total: 120
What is the value of
s
i
n
10
∘
⋅
s
i
n
50
∘
+
s
i
n
50
∘
⋅
s
i
n
250
∘
+
s
i
n
250
∘
⋅
s
i
n
10
∘
equal to?
−
1
4
−
3
4
3
s
i
n
10
∘
4
−
3
cos
10
∘
4
Validate
Solution:
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