Actually it has got limits - 0 and \frac{∏}{2}
And putting the limits the answer in the first case come as \frac{∏}{2} and in the second one -\frac{∏}{2}
Ya the difference is a constant arctan ∞ = \frac{∏}{2}
If I happen to give either of the answer will it be marked correct ? or...
Homework Statement
The actual problem is ∫sin2x/((sinx)4+(cosx)4) dx
Homework Equations
The Attempt at a Solution
First wrote the expression as
∫\frac{2sin2x}{((sinx)^2+(cosx)^2)^2+((sinx)^2-(cosx)^2))^2 } dx
then I changed the 2dx to d(2x)...
Homework Statement
In the given circuit find the current i1,i2,i3.
(Image of the circuit is attached) Homework Equations
current=(emf)/total resistanceThe Attempt at a Solution
The original question actually asks me to find the currents using Kirchoff's laws .Since I feel this method to be a...
Homework Statement
What are the products when 1-phenylbuta-1,3-dione reacts with diazomethane in
presence of ether?
Homework Equations
The Attempt at a Solution
I tried to do it this way:
Since carbonyl carbons of 1-phenylbuta-1,3-dione , one of them might get attacked by the...
Homework Statement
A 60 kg man stands in a 30 kg box on a light weighing machine.
If the box is kept at rest due to force applied by the man by the rope , what is the weight shown by the weighing machine?
Homework Equations
The Attempt at a Solution
.answer given in book is 15...
Homework Statement
In the figure shown a square plate of mass M and side of length L
is fixed at the center . The force F makes the square plate rotate.
The force is always perpendicular to the side.
Find the work done by the force.
Homework Equations
Work = torque x θ
The Attempt...
Homework Statement
Find the acceleration of Blocks A and B in the given situation (Picture attached)
Homework Equations
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The Attempt at a Solution
In this case I tried to do the free body diagram (i don't even know if its correct or not)
Block B has two tension forces...
Homework Statement
Find the resistance between the A and B( image attached)Homework Equations
The Attempt at a Solution
I could only simplify the diagram to this (2 attached pic) and i can't proceed any further since i can't identy find any parallel or series circuit/
Homework Statement
If a 4kg block is placed on top of a 5kg block which placed on a friction less plane and a force is applied on the lower 5kg block ,For what maximum value of force will the top block not slide ?
μ=0.036
Homework Equations
The Attempt at a Solution
The maximum static...
Homework Statement
I have attached the picture of the compound .I can't figure the name , and the aromatic nomenclature is making me dizzy.:cry::cry:
Homework Equations
The Attempt at a Solution
I know ether is named as alkoxy benzene and 2 benzene ring attached is called...