If 3 \sec ^{2} x-4=0, then the value of x(0

SSC CHSL 12 Oct 2020 Shift 2 Paper

Question : 60 of 100

Marks: +1, -0

3 \sec ^{2} x-4=0

, then the value of

x(0 < x < 90°)

Solution:

3 \sec ^{2} x-4=0

\sec ^{2} x={4}/{3}

\sec x={2}/{\√{3}}

x=30°(\∵\sec 30°={2}/{\√{3}})

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