🛠️ JEE➗ Maths

If for the solution curve \(y=f(x)\) of the differential equation \(\frac{\mathrm{d} y}{\mathrm{~d} x}+(\tan x) y=\frac{…

Q1

If for the solution curve \(y=f(x)\) of the differential equation \(\frac{\mathrm{d} y}{\mathrm{~d} x}+(\tan x) y=\frac{2+\sec x}{(1+2 \sec x)^2}\), \(x \in\left(\frac{-\pi}{2}, \frac{\pi}{2}\right), f\left(\frac{\pi}{3}\right)=\frac{\sqrt{3}}{10}\), then \(f\left(\frac{\pi}{4}\right)\) is equal to :

[JEE Main 2025, 29 Jan (Shift 2)]

a

\(\frac{9 \sqrt{3}+3}{10(4+\sqrt{3})}\)

b

\(\frac{\sqrt{3}+1}{10(4+\sqrt{3})}\)

c

\(\frac{4-\sqrt{2}}{14}\)

d

\(\frac{5-\sqrt{3}}{2 \sqrt{2}}\)

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