Free Online Help
I am an online teacher of chemistry and mathematics.
Tuesday, October 23, 2012
trigonometric values 0 to 90
Double angle formulas of sinA, Cos A and tan A
Double angle formulas of sin 2A , Cos 2A and tan2A
sin(2A) = 2sinAcosA
cos(2A) = 2cos^2A- sin^2 A
cos(2A) = 1- 2sin^2A
cos(2A) = 2cos^2A - 1
tan (2A) = 2tanA / (1- tan^2A)
Double angle formula for sinA.cosA and tan A
Newer Posts
Older Posts
Home
Subscribe to:
Posts (Atom)