Use the squared identities to simplify 2sin^2xsin^2x a. 3-4cos(2x)-cos(4x)/4 b. 3+4cos(2x)+cos(4x)/4 c. 3-4cos(2x)+cos(4x)/4 d. 3+4cos(2x)-cos(4x)/4

Adifferent website gives the cost for the first train as £56.88 and the second train as £20.11 with a £9.50 charge for cycle storage for the whole trip. how much would the journey cost you?

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.

What is the volume of this container?