Find All Solutions to the Equation sin x cos x = 0

To solve the equation sin x cos x = 0, we can utilize the property that the product of two terms equals zero when at least one of the terms is zero.

This gives us two separate equations to consider:

  1. sin x = 0
  2. cos x = 0

Let’s solve each of these cases:

1. Solving sin x = 0

The sine function equals zero at integer multiples of π. This can be expressed as:

x = nπ

where n is any integer (n ∈ ℤ).

2. Solving cos x = 0

The cosine function equals zero at odd multiples of π/2. This can be shown as:

x = (2n + 1)π/2

where n is any integer (n ∈ ℤ).

Final Solution

Combining both sets of solutions, we find that:

  • x = nπ for any integer n.
  • x = (2n + 1)π/2 for any integer n.

Thus, all solutions to the equation sin x cos x = 0 are:

x = nπ or x = (2n + 1)π/2, where n is any integer.

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