🛠️ JEE➗ Maths

Let \( \mathrm{f} \) be a twice differentiable function defined on \( R \) such that \( f(0)=1, f^{\prime}(0)=2 \) and \…

Q1

Let \( \mathrm{f} \) be a twice differentiable function defined on \( R \)

such that \( f(0)=1, f^{\prime}(0)=2 \) and \( f^{\prime}(\mathrm{x}) \neq 0 \) for all

\( x \in R \). If \( \left|\begin{array}{ll}f(x) & f^{\prime}(x) \\ f^{\prime}(x) & f^{\prime \prime}(x)\end{array}\right|=0 \), for all \( x \in R \), then the

value of f(1) lies in the interval

[JEE Main 2021, 24 Feb (Shift 2)]

a

\( (0,3) \)

b

\( (9,12) \)

c

\( (3,6) \)

d

\( (6,9) \)

🔒
Answer & explanation — PYQ Pass

Options are free to see. Unlock the correct answer and full explanation with Pass.

Unlock · ₹149

Practice more JEE Maths PYQs

See every question on Differential Equations, or browse the full JEE question bank.

See all questions on Differential Equations →