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# 1+sec^2xsin^2x= sec^2x

prove the identity

g(x)=5-7/2×-3×^2

# What is the answer to (y-3)^2/16 - (x+2)^2/9=1 in hyperbola for, with the center, vertices, foci, asymps, and what a,b, and c equal?

Please show all work so I can understand how to do it this is my last problem and I am stuck.

# determine how many solution exist

< = angles determine how many solution exist

# Prove that Sin^2x + Cos^2x + 1 = 2Cos^2x + 2Sin^2x

Prove that  Sin^2x + Cos^2x + 1 = 2Cos^2x + 2Sin^2x

# eliminate the parameter t for x=3sint and y=2cost

eliminating the parameter

# How do I find the area under a function given the X and Y limits and equation?

Precalculus f(x) = x + 4, f(x)=0, x = 2, x = 10

# how you could use Descartes' rule and the Fundamental Theorem to predict the number of complex roots to a poly

How could you use Descartes' rule and the Fundamental Theorem of Algebra to predict the number of complex roots to a polynomial as well as find the number of possible positive and negative real roots...

# Find two different sets of parametric equations for the following equation: y= (1/(x^3)) I need the answers to this.

I have the answers {x=2t, y=(1/8t^3) } and {x=t, y=(1/t^3)} If I have the wrong answers could you explain how to get the right ones? I have to answer this in class tomorrow and I'm insanely paranoid...

# 2x+/x+4= 0

fraction ineqaulties

# A configuration of firewood is arranged in the shape of a triangle. If each piece of wood is 1 foot in length, what is the volume of the pile of wood?

I am having trouble setting this up. The problem includes a diagram of the wood set up one side measures 20ft another side measures 14ft. The angle is 50 degrees and the wood meaesures 1 foot in length...

# What are the values of all the cube roots (Z = -4v3 - 4i)?

I have to remember to convert -4√3 – 4i) in to polar form