ఒకవేళ tanθ = \(\frac{8}{19}\)అయితే, sec2θ విలువను కనుగొనండి?

1
\(\frac{11}{19}\)
2
\(1\frac{8}{19}\)
3
\(\frac{297}{361}\)
4
\(1\frac{64}{361}\)

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