3(sec2θ + tan2θ) = 5, 0° < θ < 90° ആണെങ്കിൽ, cosec θ യുടെ മൂല്യം ഇതാണ്:

1
\(\dfrac{1}{2}\)
2
\(\dfrac{1}{\sqrt3}\)
3
2
4
\(\dfrac{2\sqrt3}{3}\)

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