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You need to use the conjugation form of haben or sein (if it involves movement or a change of state, e.g. freezing or falling asleep). <...

i) 3Z-4WFor this question it is just the matter of substituting the complex numbers of Z and W into the equation. So, 3(4+3i)-4(6-i). Then multiply out the brackets to get 12+9i-24+4i. Finally simply to g...

Prophase, Metaphase, Anaphase and Telophase

DNA is replicated in interphase. 1) Prophase is first stage. Nuclear envelope breaks down and chromosomes condense and free in cytoplasm. Centrioles move to opposite ends of cell to form network of fibres...

The pretérito perfecto (he llamado, has llamado, ha llamado..) is used to describe an action which happened in a time which is not yet past, or is still part of the present. For example this year...