If $2{\mathrm{tan}}^{2}x-5\mathrm{sec}x-1=0$ has 7 roots in $[0,\frac{n\pi}{2}]$ then the greatest value of n is?

Yahir Crane
2022-06-27
Answered

If $2{\mathrm{tan}}^{2}x-5\mathrm{sec}x-1=0$ has 7 roots in $[0,\frac{n\pi}{2}]$ then the greatest value of n is?

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