यदि tan θ = \(\frac{2}{{5}}\) है, तब \(\frac{(1 + cos\theta)(1 - cos\theta)}{{(1 + sin\theta)(1 - sin\theta)}}\) का मान ज्ञात कीजिए।

1
\(\frac{77}{{48}}\)
2
\(\frac{4}{{25}}\)
3
\(\frac{36}{{48}}\)
4
\(\frac{27}{{25}}\)
5
अनुत्तरित प्रश्न

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