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UPSC NDA I 2025 Mathematics Paper

Question Numbers: 31-33
Consider the following for the three (03) items that follow: Let p=sin35^∘, q=sin25^∘ and r=sin(−95^∘).

Question : 32 of 120

Marks: +1, -0

What is (pq+qr+rp) equal to?

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