Final answer to the problem
$r=4$
Got another answer? Verify it here!
Step-by-step Solution
How should I solve this problem?
- Choose an option
- Solve for r
- Solve for a
- Simplify
- Factor
- Factor by completing the square
- Find the integral
- Find the derivative
- Find the derivative using the definition
- Solve by quadratic formula (general formula)
- Load more...
Can't find a method? Tell us so we can add it.
1
Apply the property of power of a product in reverse: $a^n\cdot b^n=(a\cdot b)^n$
Learn how to solve factor by difference of squares problems step by step online.
$r=\sqrt{\left(a+\sqrt{a^2-16}\right)\left(a-\sqrt{a^2-16}\right)}$
Learn how to solve factor by difference of squares problems step by step online. Solve the equation r=(a+(a^2-16)^(1/2))^(1/2)(a-(a^2-16)^(1/2))^(1/2). Apply the property of power of a product in reverse: a^n\cdot b^n=(a\cdot b)^n. Solve the product of difference of squares \left(a+\sqrt{a^2-16}\right)\left(a-\sqrt{a^2-16}\right). Cancel like terms a^2 and -a^2. Calculate the power \sqrt{16}.
Final answer to the problem
$r=4$
