$\Delta ABC$ में,$m\angle A = 90^\circ$,$AB = 5$,$AC = 12$ और $BC = 13$ है। अतः,$\sin C + \cos C = \ldots$

  • A
    $1$
  • B
    $\frac{7}{13}$
  • C
    $5$
  • D
    $\frac{17}{13}$

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