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  1. The value of (sin² 25° + sin² 65°) is :
    1. √3
      2
    2. 1
    3. 0
    4. 2
      √3
Correct Option: B

sin² 25° + sin² 65°
= sin² 25° + sin² (90° - 25°)
= sin² 25° + cos² 25° = 1


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