- #1
boz27
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Could someone help me to solve the equation below?
cos(wt).exp(jθ)
I want to find something like
cos(wt+θ)
thanks from now on
cos(wt).exp(jθ)
I want to find something like
cos(wt+θ)
thanks from now on
boz27 said:Could someone help me to solve the equation below?
cos(wt).exp(jθ)
I want to find something like
cos(wt+θ)
thanks from now on
boz27 said:I mean cos(wt) multiplied by exp(jθ)
boz27 said:Let’s make it easier if you like
cos(θ1).exp(iθ2)
where θ1 and θ2 are constants in rad.
As you recommended I found in the following expression
[Exp(i(θ1+ θ2)) + Exp(i(θ2- θ1))] /2
İf I try to turn back to the cosine form I can not provide something like
cos(θ1+ θ2) or cos(θ1- θ2) or cos(θ1- θ2+ PI/2)...
OR
sin(θ1+ θ2) or sin(θ1- θ2) or sin(θ1- θ2+ PI/2)...
This is from topic of electric physics .
You have a voltage source as cos(wt) or cos(θ1) w=2.PI.f t: time
I have a low pass filter that is described as
exp(iθ2) (say transfer fonction in sinusoidal continuous form)
which is to make θ2 rad (or degrees) shift in phase with respect to input signal say cos(wt)
What am I going to see on scope at output ?=How the output will be seen in time domain ?
I am interested in reel part of the output
If I use MATLAB with simulink I can see a output voltage wave form that is shifted by θ2 with respect to input signal. (Lets ignore change in amplitude)
With best regards
The first step in solving an equation with cos(wt).exp(jθ) is to simplify the expression by using the properties of exponential and trigonometric functions.
Some properties of exponential functions include the power rule, product rule, and quotient rule. Trigonometric functions have properties such as the double angle formula, half angle formula, and the Pythagorean identities.
Yes, you can use a calculator to solve an equation with cos(wt).exp(jθ). However, it is important to make sure your calculator is set to the correct mode (degrees or radians) and that you are using the correct input syntax for exponential and trigonometric functions.
Yes, there are specific steps to follow when solving an equation with cos(wt).exp(jθ). These steps include simplifying the expression, using trigonometric identities to rewrite the equation, and solving for the variable using algebraic techniques.
Some common mistakes to avoid when solving an equation with cos(wt).exp(jθ) include forgetting to apply the correct trigonometric identity, making errors when using a calculator, and not simplifying the expression before solving for the variable.