*Arithmetic progression
*Arithmetic progression
Posts
*Binomial expansion
*Binomial expansion
Neglecting the terms containing higher power of x we can write
(1 + x)n ≈ 1 + n x
*Cramer’s rule For two simultaneous equations, a1 x + b1 y = c1 & a2 x + b2 y = c2
*Cramer’s rule
For two simultaneous equations,
a1 x + b1 y = c1 & a2 x + b2 y = c2
*Property of complementary angles.
*Property of complementary angles.
If α + β = 900, then:
sinα = cosβ, cos α = secβ & tanα = cotβ
*Commonly used values
*Commonly used values
^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
