Arccos sqrt2/2

In using the Solve[] and the ArcCos[], arccos sqrt2/2, I am getting sort-of two different answers see attached and cannot understand why. Would someone please explain to me why, in solving for Phi, I am getting different answers? C[1], C[1]? Answer Unmark.

If you're seeing this message, it means we're having trouble loading external resources on our website. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. Donate Log in Sign up Search for courses, skills, and videos. Inverse trigonometric functions. About About this video Transcript. Sal introduces arcsine, which is the inverse function of sine, and discusses its principal range. Created by Sal Khan.

Arccos sqrt2/2

Submitted by Lisa S. Solved by verified expert. We will assign your question to a Numerade educator to answer. Enter your answer, in terms of pi , in the box. Your personal AI tutor, companion, and study partner. Ask unlimited questions and get video answers from our expert STEM educators. Millions of real past notes, study guides, and exams matched directly to your classes. Already have an account? Log in. Invite sent! Login Sign up. Sign up Login. Snapsolve any problem by taking a picture.

Well that's the same as the y-height, I arccos sqrt2/2 we could call it. Let's think about it a little bit.

.

The arccos function allows the calculation of the arc cosine of a number. The arccos function is the inverse functions of the cosine function. Arccosine function The arccosine function is the inverse function of the cosine function , it calculates the arc cosine of a number online. The number on which you wish to apply the fonction arccosine function must belong to the range [-1,1]. To calculate the arccosine of a number, just enter the number and apply the arccos function. Thus, for calculating the arccosine of the number following 0. To differentiate function arccosine online, it is possible to use the derivative calculator which allows the calculation of the derivative of the arccosine function. Antiderivative calculator allows to calculate an antiderivative of arccosine function. The limit calculator allows the calculation of limits of the arccosine function.

Arccos sqrt2/2

.

Funda nillkin

And all of those would work because those would all get me to that same point of the unit circle, right? This is an isosceles triangle, right? That's theta. And you'd be done. Find the exact value of the trigonometric function. Suggested Textbook. Or we could say the inverse sign of minus square root of 3 over 2 is equal to minus pi over 3 radians. Enable JavaScript to interact with content and submit forms on Wolfram websites. If it's all simple degree or radian measurements that you are working with, then yes, it can be memorized. All rights reserved. I can put that in rational form by multiplying that by the square root of 2 over 2.

.

I could rewrite either of these statements as saying sine of what is equal to the square root of 2 over 2. Now that you have these use the calculator to take ASIN of the results. So we developed a line of study tools to help students learn their way. But I don't have that memorized. So, the value of arccos 1 is 0 radians. So I know I'm going to get, hopefully, the right answer. Is the inverse of sin the same as the cosecant. For the radian thing, there seems to be times when the word 'radian' follows pi. So let's say I were to ask you what the arcsine of minus the square root of 3 over 2 is. This is the angle. This is theta. This is an isosceles triangle, right? So if I were to write minus pi divided by 3, what do I get? Mark as an Answer. Degrees cancel out.