*Arithmetic operations
*Arithmetic operations
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*Periodic functions A function is said to be periodic if it repeats itself after a fixed period. For a periodic function f (x) there exists a positive number ‘p’ such that
*Periodic functions
A function is said to be periodic if it repeats itself after a fixed period. For a periodic function f (x) there exists a positive number ‘p’ such that
f (x + p) = f (x) for all x.
The smallest such value of ‘p’ is called period.
Periodicity of tan θ & cot θ is π & that of sinθ, cosθ, cscθ and secθ is 2π.
*Semi angle formulae
*Semi angle formulae
^A long horizontal fixed wire carries a current of 100 A. Directly above and parallel to it is another wire carrying a current of 20 A and weighing 0.04 N/m.
^A long horizontal fixed wire carries a current of 100 A. Directly above and parallel to it is another wire carrying a current of 20 A and weighing 0.04 N/m. The separation between the two wires so that the upper wire is just supported by the magnetic repulsion is
