Please help. Need help with 2d and vector problems. Please help it's urgent?

Let denote the angle made by a given force with the positive x-axis (pointing right). So in (1), A makes an angle of 90º - 30º = 60º, and B makes an angle of -45º; and in (2), A still makes angle of 30º, B makes an angle of -15º, and C makes one of -90º.

Separate each force vector in to x- and y-components, then compute the required vector. This involves writing each given vector as

where

(1)

(2)

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