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8cosxcos2xcos4x=sin6x/sinx

find x?

secx - cosecx = 4/3

find x?

P_AV=nRT_A

T_A=P_AV / nR

T_A= P_A/R * V/n --- (i)

Similarly T_B = P_B / 1.08R * V/n ---------(ii)

substitute the value of V/n from (i) into (ii)

We get,

T_a/T_b * P_b/P_a = 1.08

i.e T_a/T_b * P_b/P_a>1

(a) Pa/Pb <1 and Ta/Tb >1

which can be true according to our equation

(A) is the correct answer here

a simple example can be taken as,

an object moving with an acceleration a on a horizontak surface.
The normal fbd would be Frictional force = ma

now if we take it from a non inertial frame ie imagine you are sitting on the block
now according to you the block is at rest so you apply Pseudo ma backwards. Still you gat Frictional force - ma = o

in this example it may seem that what is the use of pseudo force, but incase of inclined surfaces where angles come, the pseudo forces help a lot!

pseudo force is nothing new ... it is just f=ma which can also be written as f-ma.

so, only to make the calculations easier pseudo force is taken into account, you can get the solution by drawing the FBD from the intertial frame of reference and then applying sumation F = mA

Enjoy

I got it...thanks

if a gas gas undergoes a process such that P=kV, what is the value of molar heat capacity of the gas?

solve it dude

adiabatic process??...where is it given that the process is adiabatic?...

according to ashmita k = 1

but in an adiabatic process

w +

U = 0

w/del.U = -1 .....not 1

The first law is violated!!!!

Whats going on???

demonstrate that the process in which the work performed by an ideal gas is proportional to the corresponding increment of its internal energy is described by the equation pvⁿ= const., where n is a constant.

pure rolling means that the lowermost point is having zero velocity, zero momentum, zero force, zero torque.

the torque of friction about the lowermost point is always zero.

so, we are left with the torque due to gravity, which can only be zero on a horizontal surface. not on an incline, since r cannot be zero on the incline.

you are right amaron.

x + 1/x is greater than 2 when x is +.

when x is negative the least value becomes -2

so the answer should be -6.

take sinx=a
cosx=b
tanx=c

eqn becomes a+b+c+1/a+1/b+1/c
a+1/a + b+1/b + c+1/c
(using the concept of AM >= GM , if we take two numbers x and 1/x
their arithemetic mean is - x + 1/x whole divided by 2
and geometric mean = 1
therefore x + 1/x > = 2

hence minimum value of the expression is
2+2+2
= 6

There You Go Buddy!

cosxcos2xcos4x=1/8

find x?