Question about SoftMath Algebrator - Algebra Homework Solver (689076614429)

X = ... =5pi/2, -1pi/2, 3pi/2, 7pi/2, 11pi/2, 15pi/2, ...

Posted on Apr 19, 2014

Consider this graph, of sin(x)

http://www.analyzemath.com/trigonometry/graph_sine.gif

You can see that where sin(x) = -1, x = 3/2 Pi (270 degrees). So that is the first of many solutions, which recur every 2 Pi (or 360 degrees) plus or minus from the first solution.

Posted on Apr 19, 2014

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Posted on Jan 02, 2017

SOURCE: use the identity tan(x/2)=sinx/1+cosx to solve for the value of tan45 degrees

tan(x/2)=sin(x)/(1+cos(x))

Setting x/2=45, means that x=90 (degrees)

But cos(90)=0 and sin(90)=1. Thus tan(45)=1/(1+0)=1.

Posted on Mar 14, 2013

Sorry, it is not clear. **When dealing with trigonometric equations, there are usually an infinite number of solutions.** This is due to the trigonometric functions being periodic.

Feb 05, 2014 | Casio FX9750GII Graphic Calculator

Trigonometry is a broad field, with many possible problems. Do you have a specific problem in mind?

Jul 07, 2013 | Computers & Internet

Here is the answer to your question.

Mar 05, 2013 | Super Tutor Trigonometry (ESDTRIG) for PC

It's not clearly what do you want to do but for three possible options solutions are on the captured images below(for radian mode).

Feb 23, 2013 | Texas Instruments TI-89 Calculator

Hi,
Trigonometry is defined as: The branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles. See more information on trigonometry by clicking here.
Hope this helps. If it does, please accept and rate the solution! Contact me with any more questions you may have. Thanks for using FixYa!

May 22, 2011 | Computers & Internet

Come on. You really want to pay 3 bucks for homework question. Rate me as poor as you want, but get your education the right way and please do the work.

Mar 23, 2011 | Super Tutor Trigonometry (ESDTRIG) for PC

Yes, and it will do just fine even for Calculus.

Sep 12, 2010 | Casio FX-9750GPlus Calculator

x^2=-3x+28
x^2+3x - 28 = 0
D=9+112=121>0
x1=(-3+11)/2 = 4
x2=(-3-11)/2 = -7

Jun 03, 2010 | Bagatrix Precalculus Solved Full Version...

you can follow this link and can get the solution http://mathforum.org/dr.math/faq/formulas/faq.trig.html

May 31, 2010 | Super Tutor Trigonometry (ESDTRIG) for PC

Aug 05, 2008 | Super Tutor Trigonometry (ESDTRIG) for PC

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