यदि $y(x) = \left| \begin{array}{ccc} \sin x & \cos x & \sin x + \cos x + 1 \\ 27 & 28 & 27 \\ 1 & 1 & 1 \end{array} \right|$,$x \in R$,तो $\frac{d^2 y}{d x^2} + y$ का मान ज्ञात कीजिए।

  • A
    $-1$
  • B
    $28$
  • C
    $27$
  • D
    $1$

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यदि ${D_p} = \begin{vmatrix} p & 15 & 8 \\ p^2 & 35 & 9 \\ p^3 & 25 & 10 \end{vmatrix}$ है,तो ${D_1} + {D_2} + {D_3} + {D_4} + {D_5} = $

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