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    Maths-
    General
    Easy

    Question

    If sin invisible function application theta subscript 1 end subscript plus sin invisible function application theta subscript 2 end subscript plus sin invisible function application theta subscript 3 end subscript equals 3 comma thencos invisible function application theta subscript 1 end subscript plus cos invisible function application theta subscript 2 end subscript plus cos invisible function application theta subscript 3 end subscript is equal to

    1. 3  
    2. 2  
    3. 1  
    4. 0  

    The correct answer is: 0

      The given relation is satisfied only when sin invisible function application theta subscript 1 end subscript equals sin invisible function application theta subscript 2 end subscript equals sin invisible function application theta subscript 3 end subscript equals 1
      rightwards double arrow cos invisible function application theta subscript 1 end subscript equals cos invisible function application theta subscript 2 end subscript equals cos invisible function application theta subscript 3 end subscript equals 0
      rightwards double arrow cos invisible function application theta subscript 1 end subscript plus cos invisible function application theta subscript 2 end subscript plus cos invisible function application theta subscript 3 end subscript equals 0

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