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Lady_Fox [76]
3 years ago
7

What is the value of k and why?

Mathematics
1 answer:
bearhunter [10]3 years ago
4 0

9514 1404 393

Answer:

  (c)  π/2

Step-by-step explanation:

We know the sine of an angle is the cosine of its complement, and vice versa. The complement of angle x is (π/2-x), so ...

  sin(π/2 -x) = cos(x)

This is shown by the attached graph.

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