cos 0° + cos 30° - tan 45° + cosec 60° + cot 90° విలువ కనుగొనండి?

1
\(\frac{7}{6\sqrt{3}}\)
2
\(\frac{\sqrt3}{6}\)
3
\(\frac{7}{6}\)
4
\(\frac{7}{2\sqrt3}\)

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