Answer :

sqdancefan

Answer:

  • cos(π/2)
  • sin(0)
  • tan(π)

Step-by-step explanation:

You want to know which trig functions on the given list have a value of zero.

Trig functions

Sine

The sine function is zero at x=0 and multiples of π.

Cosine

The cosine function is zero at x = π/2 and for odd multiples of π.

Tangent

The tangent function is zero at x=0 and multiples of π. It is zero in the same places the sine function is zero.

List values

These values are zero:

  • cos(π/2)
  • sin(0)
  • tan(π)

These function values are something different:

  • cos(0) = 1
  • sin(3π/2) = -1
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