Mathematics. What Does It Mean When You Are Asked To Find The Exact Value In Radians?
Mathematics. The Problem Is Arccos((aˆš3)/2) I DO NOT WANT THE ANSWER!!! I Just Want To Know What The Question Means When It Asks For Me To Find Th
Mathematics : What Does It Mean When You Are Asked To Find The Exact Value In Radians
The problem is arccos((aˆš3)/2) I DO NOT WANT THE ANSWER!!! I just want to know what the question means when it asks for me to find the exact value in radians. I repeat, I DO NOT WANT THE ANSWER. Thank you ~~~ calebphotographer ~~~
Best Answer To Mathematics Question
This reads as:- "The angle whose cosine is aˆš3 / ; This could be written also as :- Ó¨ = cos ^(-1) ( aˆš3 / 2 ) I`m tempted to finish the question but you have frightened me off !!!!!
All Answers To Mathematics Questions
Answer 1exact value in radians means that they don't want you to plug into calc and find an approximate... . if the problem wanted 60 degrees in radians, you cannot write , you need to write pi/6.
Answer 2Leave your answer in pi and don't multiply it with square roots -simplify square roots but don't make into decimals.
Answer 3Hi, All you are being asked to do is find the angle for which the value of cos(X) = ((aˆš3)/2), where X is the angle in question. If you obtain an ansewr in degree, you have to convert it to radians using the formula AngleInRads = AngleInDegrees x PI / 180 The only hint I will give you, because you specifically say you don't want the answer, is that there are many more than one angle for which cos(X) has that particular value. Good luck and I hope this helps.
Answer 4For exact answers: If the angle is a special angle one can express the number as +1, -1, 0 or in terms of π. You are not supposed to use your calculator to find a decimal approximation. Be careful to know the range of the arc function in question when expressing your answer.
Answer 5You leave it terms of pi, don't change it to a decimal
Answer 6arc cos (rad(3)/2) means: "What angle (in radians) has a cosine of rad(3)/2)". Typically, you'll be asked to find the angles in a certain interval such as [0,2pi]. If you're not given the interval, then you must solve for the angle in quadrants where the specific inverse trig function is defined. For example, the restricted domain for inverse cosine is [0,pi] so you'd want to take the values that lie in the first and second quadrants unless you're given the interval. Think of arc cos (rad(3)/2) as this: cos x = rad(3)/2 Also, when you find the exact value, they don't want an approximation. For example, pi is an exact value while is not an exact value because it is an approximation of pi. Similarly, rad(3)/2 is the exact value while .86603 is just an approximation for the former.
Answer 7It means, you are supposed to write down a number, like . If the answer can't be written as an exact decimal number, then perhaps it can be written as an exact multiple of pi. Like this: pi
Answer 8Usually, angles are measured in degrees. Radians are another units for measuring angle. So 90deg=pi/2 rads~=/2 rads, 180deg=pi rad~= radians... So you need to find what angle has a cos of sqrt(3)/2, and give the solution in radians, not degrees. The easiest, and more EXACT, is to give it as a fraction of pi. (Hint: look up your trig tables.) Good luck!
Answer 9This reads as:- "The angle whose cosine is aˆš3 / ; This could be written also as :- Ó¨ = cos ^(-1) ( aˆš3 / 2 ) I`m tempted to finish the question but you have frightened me off !!!!!
Answer 10It means that after you solve it, you need to convert the answer in degrees to radians. Since π is infinite, you don't want to multiply by an approximation like unless the problem specifies that you should. To convert from degrees to radians, do this: degrees * π radians/180º Ex: 60º = 60º * π radians/180º = π/3 radians
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