Question: In the figure DFE = 90, DE = 1 unit and cos E = k. Use the figure to: 3.1 determine EF in terms

In the figure DFE = 90, DE = 1 unit and cos E = k. Use the figure to: 3.1 determine EF in terms of k. 3.2 determine DF in terms of k. 3.3 express tan E in terms of k. 3.4 prove that sin D = cos E. (2) (2) A E (2) (1)

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