The number of roots of the equation, (81)^{\sin ^{2} x}+(81)^{\cos ^{2} x}=30 in the interval [0, \pi] is equal to [16 Mar 2021 Shift 1]

JEE Main 16 March 2021 Shift 1 Solved Paper

Section: Mathematics

Question : 79 of 90

Marks: +1, -0

The number of roots of the equation, (81)sin2x+(81)cos2x=30 in the interval [0,π] is equal to

[16 Mar 2021 Shift 1]

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