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Morgarella [4.7K]
3 years ago
13

How do you do this? This is trig mixed sides​

Mathematics
1 answer:
Marina CMI [18]3 years ago
8 0

In this triangle,

\cos45^\circ=\dfrac n{60}

You should know that

\cos45^\circ=\dfrac1{\sqrt2}

so that

n=\dfrac{60}{\sqrt2}=30\sqrt2\approx42.4

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