Why do I divide the table of values like this?
Why is π/2 after 2 boxes after 4. π according to 6. 3π/2
Is that correct?
And then calculate it with cosine? It feels wrong somehow, so I'd rather ask
How do I solve cos tan sin?
Thanks to everyone who helps, I've been trying for 20 minutes!
Land area?
Land area A property is bounded by two streets and a river. The course of the river is described for 0≤x≤6 by the function f with f(x)=2*sin(pi*x/4) + 2. Calculate the property size. Could someone please help me? Thank you in advance
Math exam study tips?
I just can't learn, I don't know how, especially with math, my problem subject: how do you learn for math?!!
Sine tangent cosine?
How do I know whether to use cosine, tangent or sine if all sides are given I want to find out the angle MAS Cosine and sine would also work, wouldn't they? But that would produce a different result than the solution
Specify the interval in which sin(x) is reversible?
Hello, I am aware that sin(x) is always reversible on a certain interval because it either decreases or increases, but how can I express this mathematically correctly? In the solution, they're babbling about (keZ). My boss wants us to always give our solutions in general terms and not with examples. Can someone please help me?…
Calculate triangle side using area?
Good evening, I'm stuck on the problem shown in the picture. I've set up the solution below, but I always get the value: 5.1423 (which doesn't work when A=1). Correct solution value: 2.268 My approach: A= (1/2)*(sin(β)/sin(γ))*c*(sin(α)/sin(γ))*c*sin(γ) Because: A=(1/2)ab*sin(γ) a=(sin(β)/sin(γ))*c b=(sin(α)/sin(γ))*c Thank you very much in advance!
Solve this equation?
Hey, I have to solve an equation in the given fundamental set, but I don't know how to solve these calculations. Can someone tell me the solution and how you did it? Thanks. sin(2x) + cos(x) = 0; G = [0;4𝝅[ cos(2x) = 4*sin(x) + 3; G = [0;6𝝅[
Maxima, minima, zeros and monotonicity region?
Hey, I have a task to complete and it says I have to determine maxima, minima, etc., but I don't know how. The two functions are: 1. 3*sin(2t) and 2. 1.5*sin(2t + 1). Can anyone help me determine these things? Thanks.
Math question about sine, cosine and tangent?
I have a word problem and I don't know how to solve it. An 8m long ladder should be placed against a wall so that it has a maximum inclination angle of 80 degrees. a) Calculate the maximum height the ladder can reach. I think I should calculate 8m :sin(80) here, but then I get…
Love triangle?
Moje. I'm currently dying from the simplest triangular ratios. The solution is -> (1/4 = x/3 -> x = 3/4) Since I'm more of a sin, cos, tan type, my question is: Why does sin(arctan(3/4)) = 3/5 = x? Please help, otherwise I'll despair! Thank you (: