$3 \cos x + 4 \sin x + 5$ ની ન્યૂનતમ કિંમત કેટલી છે?

  • A
    $5$
  • B
    $9$
  • C
    $7$
  • D
    $0$

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નીચેનામાંથી કઈ સંખ્યા/સંખ્યાઓ સંમેય છે?

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