Quantitative Aptitude Trigonometry Trigonometric Ratios and Identities

2sinθ - 8cos2θ + 5 = 0 అయితే, ఇక్కడ 0° < θ < 90°. tan 2θ + cosec 2θ విలువని కనుగొనండి. 

1
5/√3
2
5/3
3
4/√3
4
7/√3

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