Recent content by sfeld

How do they figure this answer out? sin 240 x sec(-45) - tan (-pie/6) csc(-315) Basiclaly it says sin(240 degrees) times sec(-145 degrees) - tan(-pie/positive 6) csc(-315 degrees) says the answer is -square root 6/6 sorry I don't know how to do the symbol stuff on this forum :(...

I don't understand how they figure these problems out. Give the quadrant in which each of the following points are located, and determine which of the functions are postive and which are negative. (4, 3) Quadrant I; SIN +; COS +; TAN +; CSC +; SEC +; COT +; I understand that I think...

How exactly do you graph these? F(x) = 2x and G(x) = x + 1; Graph (F + G). Please help :\

How exactly do you do this, graphing linear functions? f(x) = x + 3? Can someone explain how to do it.

A = {(x,7)}: (1,2), (2,5), (3,8), . . .} Answer: y = 3x - 1 Can someone explain the rules of correspondence. I read it in the book that I have several times, but it doesn't explain it fully 100%.

F(X) = x^2 + 2; G(X) = x - 3 F times G Now, I don't know if this problem is different but for the times sign for F times G, its an open circle, its not solid. Answer is (x - 3)^2 + 2 or x^2 - 6x + 11

f(x) = 2x - 1; G(x) = 3x + 2; H(x) = x^2 Find f(x) + G(x) + H(x) Answer is x^2 + 5x + 1. can someone explain the problem to me please <3 ////////////Oh I see now, I was putting the wrong sign in that's why I was'nt getting it, my carless mistakes D:! please forgive D:

f(x) = 3x + 2 and g(x) = x + 5 f[g(x)] but some how this equals 3x + 17? please show me. g[f(x)] I know this would equal 3x + 7 Thanks <3

thanks for the help, sorry, I am teaching my self pre calc, its hard, but I'm getting some where!

SOME HOW I tryed a thousand times, the problem equals 27 f(x) = x+2, g(x) = 5x, h(x) = 5 Find (F + G - H)(5) !PLZ HELP and explain <3

Thanks for your help, I figured it out I think!

Two functions are said to be equal if they ahve the same domain and, for each value in the domain set, the function values are equal respectively. F = {(2,3),(3,4),(4,5) G = {(3,4),(4,5),(2,3) The domain sets are equal, and f(x) = g(x) for each corresponding value of the domain. Tow...