Write the trigonometric expression as an algebraic expression.
1.) sin(arcsin x+arccos x) 1 2.) sin(arctan 2x-arccos x) 2x²-squareroot of 1-x²/square root of 4x²+1.

Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?