Cosine what if the denominator is not given?
If the problem says 45m/x for Cos(25°), how do I calculate that?
So if only the denominator is given?
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Otherwise, the sketch in connection with the text is a disaster. No one recognizes what h should be, what is actually x, what you really want to calculate – just good that I don’t have to correct and evaluate that.
(At some point, I’m beginning to study how many pupils can’t use the screwdriver of mathematics – called equivalenform – and therefore fail in tasks)
In the calculator calculate the cosine of 25 and then dissolve the equation according to x.