Question

what is value of it
$\sin( \infty ) \: and \: \cos( \infty )$
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Answer 1

Answer:

There are no exact values defined for them. The value of sin x and cos x always lies in the range of -1 to 1. Also, ∞ is undefined thus, sin(∞) and cos(∞) cannot have exact defined values. Thus, sin x and cos x are periodic functions having a periodicity of (2π

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