(5,$\frac{\mathrm{\pi }}{4}$)কেন্দ্র ও 2ব্যাসার্ধ বিশিষ্ট বৃত্তের সমীকরণ কোনটি?

${\mathrm{\pi }}^2$+5$\sqrt{2}$(cos$\theta$+sin$\theta$)$\pi$+21=0

${\pi }^2$-$\frac{5}{\sqrt{2}}$(cos$\theta$+sin$\theta$)$\pi$-21=0

${\pi }^2$+5$\sqrt{2}$(cos$\theta$+sin$\theta$)$\pi$-21=0

${\pi }^2$+$\frac{5}{\sqrt{2}}$(cos$\theta$+sin$\theta$)$\pi$+21=0

${\mathrm{\pi }}^2$-5$\sqrt{2}$(cos$\theta$+sin$\theta$)$\pi$+21=0