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Let f(x) = sin(x) + icos(x). Show that |f(x)| = 1.

Let f(x) = sin(x) + icos(x). Show that |f(x)| = 1.
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Let f(x) = sin(x) + icos(x). Show that |f(x)| = 1.

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User Jihad Waspada
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1 Answer

1 vote
f(x) = sin(x) + icos(x)
|f(x)| = sqrt(sin^2(x) + cos^2(x)) = sqrt(1) = 1

Therefore, |f(x)| = 1
answered
User Chunhunghan
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