Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

2sin y + cos y = \(\sqrt {\rm{5}}\) sin y అయిన, tan y విలువ ఎంత?

1
\(\sqrt 5 \, - \,1\)
2
\(\sqrt {\rm{5}} \,{\rm{ - }}\,{\rm{2}}\)
3
\(\sqrt 5 \, + \,2\)
4
\(\sqrt 5 \, + \,1\)

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