You may need to be a little more clearer with those proofs
The amplitude is , the period can be found by
Have a read of this Trigonometric Functions
Help needed on these also. Either solved or information to help me solve them myself would be vcery helpful. thanks a million.......
A) cosx/1-sinx - cosx/1+sinx = 2tanx
B) sinx/sinx+cosx + cosx/sinx-cosx = 1/2sin^2x-1
2) a) State the amplitude (A) the period(T) and the frequency(F) for
the periodic function 120 sin(100pi t)V.
b) Through how many degrees does a wheel rotate in 10ms if its
angular velocity is 8 rad/s.
c) Sketch one cycle of the given function showing the values of
each variable where the curve crosses the axis.