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UPSC NDA II 2025 Mathematics Paper

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Question Numbers: 29-30
For the following two (02) items:
Let cos⁡(2x+3y)=‌
1
2
 and cos⁡(3x+2y)=‌
√3
2
  where  −π<(2x+3y)<π and −π<(3x+2y)<π.
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Question : 29
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