Pythagorean Identities

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

To simplify, recognize that is a reworking on , meaning that .

Plug that into our given equation:

Remember that , so .

Recognize that is a reworking on , meaning that .

Plug that in to our given equation:

Notice that one of the 's cancel out.

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The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.

The first step to simplifying is to remember an important trig identity.

If we rewrite it to look like the denominator, it is.

Now we can substitute this in the denominator.

Now write each term separately.

Remember the following identities.

Now simplify, and combine each term.