# Simplify arccos(2/(( square root of 9)( square root of 38))) Simplify the denominator.
Combine using the product rule for radicals.
Multiply by .
Simplify the denominator.
Rewrite as .
Factor out of .
Rewrite as .
Pull terms out from under the radical.
Multiply by .
Combine and simplify the denominator.
Multiply and .
Move .
Raise to the power of .
Raise to the power of .
Use the power rule to combine exponents.
Rewrite as .
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.
Cancel the common factor of and .
Factor out of .
Cancel the common factors.
Factor out of .
Cancel the common factor.
Rewrite the expression.
Multiply by .
Evaluate .
The result can be shown in multiple forms.
Exact Form:
Decimal Form:
Simplify arccos(2/(( square root of 9)( square root of 38)))

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