यदि \( \sec \theta=\frac{2}{\sqrt{3}} \) तो \( \sec 2 \theta \) का मान ज्ञात कीजिए।

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यदि \( \sec \theta=\frac{2}{\sqrt{3}} \) तो \( \sec 2 \theta \) का मान ज्ञात कीजिए।
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