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\(\operatorname{cosec} 18^{\circ}\) is a root of the equation: [JEE Main 2021, 31 Aug (Shift 1)]

Q1

\(\operatorname{cosec} 18^{\circ}\) is a root of the equation:

[JEE Main 2021, 31 Aug (Shift 1)]

a

\(x^2+2 x-4=0\)

b

\(x^2-2 x+4=0\)

c

\(4 x^2+2 x-1=0\)

d

\(x^2-2 x-4=0\)

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