Seeking Confirmation On An Equation's Answer

  • Thread starter Thread starter Glynbeard
  • Start date Start date
AI Thread Summary
The equation presented is (3|(sqrt(2log4(16)) - (3*5^2))|+1)/(11/4). The user calculated the value as 80 and confirmed this using WolframAlpha. Another participant clarified that the expression simplifies to 80 through step-by-step calculations. The breakdown shows that the absolute value and logarithmic operations lead to the final result. Therefore, the user's answer of 80 is confirmed as correct.
Glynbeard
Messages
1
Reaction score
0

Homework Statement



(3|(sqrt(2log4(16)) - (3*5^2))|+1)/(11/4)

or

http://www.freemathhelp.com/forum/attachment.php?attachmentid=1719&d=1329600509&thumb=1

Homework Equations



Listed above.

The Attempt at a Solution



I solved through the above equation and got the answer to be 80 and I was wondering if this is correct. When I plug it into wolframalpha, I get 80 as well (as seen here), but I just want to be sure before moving forward.

Any help would be greatly appreciated!
 
Physics news on Phys.org
That is not an equation, it is an expressdion! If you are simply asking for its value,

2 log_4(16)= 2(2)= 4 sqrt(4)= 2 3*5^2= 75

2- 75= -73. 3|-73|= 219. 219+ 1= 220. 220*(4/11)= 20*4= 80 so, yes, you are correct.
 

Thread 'Family of lines that are at a distance of 5 from the origin'

I picked up this problem from the Schaum's series book titled "College Mathematics" by Ayres/Schmidt. It is a solved problem in the book. But what surprised me was that the solution to this problem was given in one line without any explanation. I could, therefore, not understand how the given one-line solution was reached. The one-line solution in the book says: The equation is ##x \cos{\omega} +y \sin{\omega} - 5 = 0##, ##\omega## being the parameter. From my side, the only thing I could...
View full post »

Thread 'Making the denominator of a certain fraction real'

Essentially I just have this problem that I'm stuck on, on a sheet about complex numbers: Show that, for ##|r|<1,## $$1+r\cos(x)+r^2\cos(2x)+r^3\cos(3x)...=\frac{1-r\cos(x)}{1-2r\cos(x)+r^2}$$ My first thought was to express it as a geometric series, where the real part of the sum of the series would be the series you see above: $$1+re^{ix}+r^2e^{2ix}+r^3e^{3ix}...$$ The sum of this series is just: $$\frac{(re^{ix})^n-1}{re^{ix} - 1}$$ I'm having some trouble trying to figure out what to...
View full post »

Similar threads

Write the Standard Form of the Equation for this Circle
Replies
16
Views
2K
Given probability, solve unknown number of counters
Replies
2
Views
4K
Logarithmic Regression Question (TI-84 Plus Graphing Calculator)
Replies
4
Views
2K
Simultaneous Equations Alternate Approach
Replies
9
Views
2K
Find the scalar, vector, and parametric equations of a plane
Replies
10
Views
3K
Equation involving 2 variables
Replies
3
Views
2K
Solver's Guide: Finding Least Number of Positive Roots in a Equation
Replies
5
Views
2K
Find the scalar, vector, and parametric equations of a plane
Replies
8
Views
3K
Different ways of solving for x in trig. equations
Replies
4
Views
2K
Evaluating piecewise functions. Please help if you can.
Replies
1
Views
2K

Hot Threads

Recent Insights

Back
Top