# Find the Cosine (one divide two , minus square root of three divide two)

To find the between the x-axis and the line between the points and , draw the triangle between the three points , , and .

Opposite :

Adjacent :

Use the product rule for .

One raised to any power equals one.

Raise to the power of .

Should be rewritten as .

First, multiply by .

Add and Clarify the denominator.

Multiply and .

Raise to the power of .

Raise to the power of .

Apply the power rule to Add exponents.

Add and .

Rewrite as .

Use to rewrite as .

Use the power rule when multiplying the exponents, .

Combine and .

The common factor should be canceled of .

Cancel the common factor.

First, divide by .

Solve the exponent.

Clarify the numerator.

Add using the product rule for radicals.

Multiply by .

Use the power rule for exponent distribution.

Apply the product rule to .

Apply the product rule to .

Clarify the expression.

Raise to the power of .

Multiply by .

Rewrite as .

Use to rewrite as .

Apply the power rule and multiply exponents, .

Combine and .

The common factor should be canceled.

Cancel the common factor.

Divide by .

Evaluate the exponent.

Raise to the power of .

The common factor should be canceled and .

Factor out of .

The common factors should be canceled.

Factor out of .

Cancel the common factor.

Reformulate the expression.

To write as a fraction with a common denominator, multiply by .

Write each expression with a common denominator of , by multiplying each by an appropriate factor of .

Multiply and .

First, multiply by .

Add numerators over the common denominator.

Clarify the numerator.

Multiply by .

Add and .

Rewrite as .

Simplify the denominator.

Rewrite as .

Withdraw terms from under the radical, assuming positive real numbers.

therefore .

Multiply the numerator by the denominator's reciprocal.

Cancel the common factor of .

Cancel the common factor.

Rewrite the expression.

Multiply by .

Add and then simplify the denominator.

Multiply and .

Raise to the power of .

Raise to the power of .

Use the power rule to combine exponents.

Add and .

Rewrite as .

Use to rewrite as .

Apply the power rule and multiply exponents, .

Combine and .

Cancel the common factor of .

Cancel the common factor.

Divide by .

Evaluate the exponent.

Approximate the result.

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