a = 2 + √3 1/a = 1/(2 + √3) = 2 - √3 a + 1/a = 2 + √3 + 2 - √3 a + 1/a = 4(a6+ a4+ a2+ 1)/a3 → (a3 (a3+ a + 1/a + 1/a3))/a3 = a3 + a + 1/a + 1/a3 = (a3 + 1/a3) + (a + 1/a) a + 1/a = 4 On cubing both sides, (a + 1/a)3 = (4)3 a3 + 1/a3 + 3 × (a + 1/a ) = 64 a3+ 1/a3+ 3 × (4) = 64 a3+ 1/a3+ 12 = 64 a3+ 1/a3= 52 then, a3+ 1/a3+ a+1/a = 52 + 4 = 56
Energy that is produced commercially from coal is called –
The colour of sky appears blue due to –
What are the dimensions of the coefficient of viscosity?
Is Ohm’s law universally applicable for all conducting elements?
Which of the following pairs of phenomena illustrate the particle nature of the electromagnetic radiation?
The process involved in making soap is
__________ is the same at every point on a rotating body.
The refractive index of glass is 1.5. What is the speed of light in glass? Speed of light in vacuum is 3.0 x 108 m/s.
In order to use the transistor as an amplifier, it has to operate in the____ region
A plane electromagnetic wave travels in vacuum along the z-direction. If the frequency of the wave is 20 MHz, what is its wavelength?
