I do not understand these 4 questions! I have looked in my book, and can't figure them out.
1) Find the inverse of 2.5y = x^2 - 6.2x + 12.61.
It says to graph, but I can't figure out the problem.
2) Find the hyperbolic sine and cosine of: sinh (x)=1/2 (e to the x power - e to the negative x power) and cosh (x)=1/2 (e to the x power + e to the negative x power) Show that sinh (x+y)=sinh(x)cosh(y)+cosh(x)sinh(y)
3) Determine if these equations are one-to-one functions:
a) f(x) = 4x + 5/3x - 8
b) g(x) = 1/x^2- 2x + 3
4) Find all x which satisfy log base 2 x = log base 4 log base 2 3
** I have been looking and looking and cant figure them out. I really do not understand math and could use some help. THanks to all in advance!! **
1) Find the inverse of 2.5y = x^2 - 6.2x + 12.61.
It says to graph, but I can't figure out the problem.
2) Find the hyperbolic sine and cosine of: sinh (x)=1/2 (e to the x power - e to the negative x power) and cosh (x)=1/2 (e to the x power + e to the negative x power) Show that sinh (x+y)=sinh(x)cosh(y)+cosh(x)sinh(y)
3) Determine if these equations are one-to-one functions:
a) f(x) = 4x + 5/3x - 8
b) g(x) = 1/x^2- 2x + 3
4) Find all x which satisfy log base 2 x = log base 4 log base 2 3
** I have been looking and looking and cant figure them out. I really do not understand math and could use some help. THanks to all in advance!! **