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(A+B)'s share of property is $20,000 & (B+C)'s share is $30,000. If A has a share half of that of C, what is the total worth of the property?
Here is another...(I hate trig)
What is the maximum value for the expression 2sin(pi+x) + sin(x) +2?
Note that sin(pi+x) = sin(pi)cos(x) + cos(pi)sin(x) = -sin(x).Here is another...(I hate trig)
What is the maximum value for the expression 2sin(pi+x) + sin(x) +2?
Note that sin(pi+x) = sin(pi)cos(x) + cos(pi)sin(x) = -sin(x).
So you have -2sin(x) + sin(x) + 2..
So you really have 2 - sin(x). The way to maximize this is to make sin(x) as LOW as possible. This would be -1. So the maximum value is 3.
Use x = 3pi/2 and get a max value of 3.
Edit: Shinpe there's a pi in one of those parentheses.
Note that sin(pi+x) = sin(pi)cos(x) + cos(pi)sin(x) = -sin(x).
So you have -2sin(x) + sin(x) + 2..
So you really have 2 - sin(x). The way to maximize this is to make sin(x) as LOW as possible. This would be -1. So the maximum value is 3.
Use x = 3pi/2 and get a max value of 3.
Edit: Shinpe there's a pi in one of those parentheses.
Couple of questions:
sin(pi+x) = sin(pi)cos(x) + cos(pi)sin(x) = -sin(x)
is this a function I should memorize. Curious..how was this deduced?
Also, how did you know to use -1?
Did you use the graph of y=sinx/y=cosx?
It doesn't divide evenly since the numerator doesn't factor into (t+1) * something. You need to do long division...New Question:
Evaluate:
(t^2+2t+4)/(t+1)
Thanks again!!!
Man Street, ur the best. It's been awhile since I've done long division with polynomials. Thanks again.
P.S. Be on the look out. I'll be posting more QR's questions. Thanks again.
I haven't seen a math question go unanswered by him in two years....he is good.
Look harder... I've missed a fewI haven't seen a math question go unanswered by him in two years....he is good.
Holy search function Batman!
http://forums.studentdoctor.net/showthread.php?t=645168&highlight=If+N+is+any+positive+integer
Holy search function Batman!
http://forums.studentdoctor.net/showthread.php?t=645168&highlight=If+N+is+any+positive+integer