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The ritornello form was one of the musical structures developed in the Baroque period. It is characterised by a recurring A section in between new sections of music, and is often described as 'ABACA', whe...

GRUBBES Pros - Higher income tax SO less of a budget deficit, more public funding which could increase AS and reduce Y inequality Evaluate: Laffer curve, LT increase, little evidence it does (depends on w...

Unsaturated fats usually have a C=C double bond, e.g. vegetable oil. So, it's 'unstable' because of the high concentration of negative charge (electrons). Bromine (B2) is not polarised. However, as it app...

sin cos -sin -cos (down is differentiate and up is integrate) so, y = sin5x  dy/dx = 5cos5x y=3cox      dy/dx = -3sinx y=3tan5x     dy/dx = 15sec²(5x) (remember sec(x) is the reciprocal of cos(...

Expand the brackets:

(3z + 18) - (8z + 2)

Simplify:

16 - 5z