Maths-
General
Easy
Question
Let f : (0, ¥) → R and F(x) = 
t f (t) dt. If F (x2) = x4 + x5, then 
f(r2), is equal to
- 216
- 219
- 221
- 223
The correct answer is: 219
Related Questions to study
Maths-
Maths-General
chemistry-
The enzyme pepsin hydrolyses:
The enzyme pepsin hydrolyses:
chemistry-General
physics-
The magnetic induction at the point O, if the wire carrying current I is
The magnetic induction at the point O, if the wire carrying current I is
physics-General
Maths-
Let f : R →R and g : R →R be continuous functions, then the value of 
(f(x) + f(-x)) (g(x) – g(-x)) dx, is equal to
Let f : R →R and g : R →R be continuous functions, then the value of (f(x) + f(-x)) (g(x) – g(-x)) dx, is equal to
Maths-General
chemistry-
Ethyl alcohol is also known as:
Ethyl alcohol is also known as:
chemistry-General
physics-
A wire is bent in the form of a circular arc with a straight portion AB If the current in the wire is i, then the magnetic induction at O is
A wire is bent in the form of a circular arc with a straight portion AB If the current in the wire is i, then the magnetic induction at O is
physics-General
physics-
The magnetic induction at O due to a current in conductor shaped as shown in fig is
The magnetic induction at O due to a current in conductor shaped as shown in fig is
physics-General
physics-
The figure shows a unifrom conducting structure which carries current i with each small square has side a The structure is kept in a uniform magnetic field B Then the magnetic force on the structure will be
The figure shows a unifrom conducting structure which carries current i with each small square has side a The structure is kept in a uniform magnetic field B Then the magnetic force on the structure will be
physics-General
physics-
Two long parallel conductors carry currents 
both are directed into the plane of paper The magnitude of resultant magnetic field at point ‘P; is
Two long parallel conductors carry currents both are directed into the plane of paper The magnitude of resultant magnetic field at point ‘P; is
physics-General
chemistry-
What amount of bromine will be required to convert 2 g of phenol into 2, 4, 6-tribromo phenol?
What amount of bromine will be required to convert 2 g of phenol into 2, 4, 6-tribromo phenol?
chemistry-General
physics-
A wire bent in the form a right angled triangle PQR, carries a current 1 A It is placed in a region of a uniform magnetic field B= 0.2T If PR = 1m, the net force on the wire is
A wire bent in the form a right angled triangle PQR, carries a current 1 A It is placed in a region of a uniform magnetic field B= 0.2T If PR = 1m, the net force on the wire is
physics-General
physics-
A current i A = 2 be flowing in each part of a wire frame as shown in fig The frame is a combination of two equilateral triangles ACD and CDE of side 1m It is placed in uniform magnetic field B=4T acting perpendicular to the plane of frame The magnitude of magnetic force acting on the frame is
A current i A = 2 be flowing in each part of a wire frame as shown in fig The frame is a combination of two equilateral triangles ACD and CDE of side 1m It is placed in uniform magnetic field B=4T acting perpendicular to the plane of frame The magnitude of magnetic force acting on the frame is
physics-General
physics-
Wires 1 and 2 carrying currents i1 and i2 respectively are inclined at an angle q to each other What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire 1
Wires 1 and 2 carrying currents i1 and i2 respectively are inclined at an angle q to each other What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire 1
physics-General
physics-
PQ is a uniform rod of length l and mass m carrying current i and is suspended in uniform magnetic field of induction B ur acting inward as shown in figure The tension in each string is
PQ is a uniform rod of length l and mass m carrying current i and is suspended in uniform magnetic field of induction B ur acting inward as shown in figure The tension in each string is
physics-General
physics-
Two wires AO and OC carry currents i as shown in figure One end of both the wires extends to infinity 
, the magnitude of magnetic field at a point P on the bisector of the two wires at a distance r from O is
Two wires AO and OC carry currents i as shown in figure One end of both the wires extends to infinity , the magnitude of magnetic field at a point P on the bisector of the two wires at a distance r from O is
physics-General
