જો $A(n) = \sin^n \alpha + \cos^n \alpha$ હોય,તો $A(1) A(4) + A(2) A(5) =$

  • A
    $A(1) A(2) + A(4) A(5)$
  • B
    $A(1) A(6) + A(2) A(3)$
  • C
    $A(1) A(3) + A(2) A(6)$
  • D
    $A(1) A(2) + A(3) A(6)$

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