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Exercise

$\cos^2\left(4x\right)+\cos^2\left(4x\right)$
1

Combining like terms $\cos\left(4x\right)^2$ and $\cos\left(4x\right)^2$

$2\cos\left(4x\right)^2$

Final answer to the exercise

$2\cos\left(4x\right)^2$

Other solved exercises

$\frac{10}{7}x\frac{4}{7}$

$-y^3+-y^3$

$n^3-3n^2$

$7\:x\:7^{-4}$

$p\left(x\right)=\left(a-2\right)x^2+2\left(x+b\right)+a$

$\frac{\left(sin\:^2y\right)}{cos\:y}=sec\:y\:-\:cos\:y$

$-151-61$
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