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  3. 10th Class
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10th Class Mathematics Sample Paper Sample Paper - 2 Term - 1

  • question_answer
      Find the value of sin 45° geometrically.

    Answer:

      Inright angled at B, if one angle is then other angle is also  i.e.,                                                  (1) So, [sides opposite to equal angles] LetThen, by Pythagoras theorem [Taking square root](1) Now,                                                        (1)


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