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  3. 10th Class
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10th Class Mathematics Sample Paper Sample Paper - 5 - Term - 1

  • question_answer
      The value of cos 1° cos 2° cos 3° ..... cos 180° is  (a) -1                                    (b) 0             (c) 1                                       (d)

    Answer:

      ?????.(b) holds [is one of the terms of the product whose value = 0]


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