sin 15° విలువ కనుగొనండి?

1
\(\frac{1}{{\sqrt 2 }}\)
2
\(\frac{{\sqrt 3 - 1}}{{2\sqrt 2 }}\)
3
\(\frac{{\sqrt 3 + 1}}{{2\sqrt 2 }}\)
4
\(\frac{{\sqrt 3 - 1}}{{\sqrt 3+1 }}\)

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