$(1+\cot A)^{2}+(1-\cot A)^{2}$ ની કિંમત શું છે?

  • A
    $2 \operatorname{cosec}^{2} A$
  • B
    $2 \operatorname{sec}^{2} A$
  • C
    $1-2 \operatorname{cosec}^{2} A$
  • D
    $1-2 \sec ^{2} A$

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