Write composite function y=(2x^4+3x+1)^3 in the form y=f(u) and g(x)

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.

Yesterday, george drank 1 small bottle and 2 large bottles, for a total of 1,372 grams. the day before , he drank 1 small bottle and 1 large bottle, for the total of 858 grams. how many grams does each bottle hold?

Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota