Final answer to the problem
$y=\cos\left(x\right)^2-\sin\left(x\right)^2$
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Step-by-step Solution
How should I solve this problem?
- Choose an option
- Differential
- Find the derivative
- Find the integral
- Find the derivative using the definition
- Solve by quadratic formula (general formula)
- Simplify
- Find the integral
- Find the derivative
- Factor
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1
The sum of two terms multiplied by their difference is equal to the square of the first term minus the square of the second term. In other words: $(a+b)(a-b)=a^2-b^2$.
$y=\cos\left(x\right)^2-\sin\left(x\right)^2$
Final answer to the problem
$y=\cos\left(x\right)^2-\sin\left(x\right)^2$
