If $m$ and $M$ respectively denote the minimum and maximum values of $f(x)=(x+1)^{2}+3$ in the interval $[-3,1]$, then the ordered pair $(m, M)=$_____________
The given function is $f(x)=(x+1)^{2}+3, x \in[-3,1]$.
$f(x)=(x+1)^{2}+3$
Differentiating both sides with respect to x, we get
$f^{\prime}(x)=2(x+1)$
For maxima or minima,
$f^{\prime}(x)=0$
$f^{\prime}(x)=0$
$\Rightarrow 2(x+1)=0$
$\Rightarrow x+1=0$
$\Rightarrow x=-1$
Now,
$f^{\prime \prime}(x)=2>0$
So, x = −1 is the point of local minimum of f(x).
At x = −1, we have
$f(-1)=(-1+1)^{2}+3=0+3=3$
At x = −3, we have
$f(-3)=(-3+1)^{2}+3=4+3=7$
At x = 1, we have
$f(1)=(1+1)^{2}+3=4+3=7$
Thus, the minimum value of f(x) is 3 and the maximum value of f(x) is 7.
∴ m = 3 and M = 7
Thus, the ordered pair (m, M) is (3, 7).
If m and M respectively denote the minimum and maximum values of f(x) = (x + 1)2 + 3 in the interval [−3, 1], then the ordered pair (m, M) = ___(3, 7)___.
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All Study Material
- JEE Main
- Exam Pattern
- Previous Year Papers
- PYQ Chapterwise
- Physics
- Kinematics 1D
- Kinemetics 2D
- Friction
- Work, Power, Energy
- Centre of Mass and Collision
- Rotational Dynamics
- Gravitation
- Calorimetry
- Elasticity
- Thermal Expansion
- Heat Transfer
- Kinetic Theory of Gases
- Thermodynamics
- Simple Harmonic Motion
- Wave on String
- Sound waves
- Fluid Mechanics
- Electrostatics
- Current Electricity
- Capacitor
- Magnetism and Matter
- Electromagnetic Induction
- Atomic Structure
- Dual Nature of Matter
- Nuclear Physics
- Radioactivity
- Semiconductors
- Communication System
- Error in Measurement & instruments
- Alternating Current
- Electromagnetic Waves
- Wave Optics
- X-Rays
- All Subjects
- Physics
- Motion in a Plane
- Law of Motion
- Work, Energy and Power
- Systems of Particles and Rotational Motion
- Gravitation
- Mechanical Properties of Solids
- Mechanical Properties of Fluids
- Thermal Properties of matter
- Thermodynamics
- Kinetic Theory
- Oscillations
- Waves
- Electric Charge and Fields
- Electrostatic Potential and Capacitance
- Current Electricity
- Thermoelectric Effects of Electric Current
- Heating Effects of Electric Current
- Moving Charges and Magnetism
- Magnetism and Matter
- Electromagnetic Induction
- Alternating Current
- Electromagnetic Wave
- Ray Optics and Optical Instruments
- Wave Optics
- Dual Nature of Radiation and Matter
- Atoms
- Nuclei
- Semiconductor Electronics: Materials, Devices and Simple Circuits.
- Chemical Effects of Electric Current,