Question

solve
8 cos^3(x)=1

Thanks!

Answer 1

solve for x ?
find exact value ?

Answer 2

\[8 \cos^3(x)=1\]
\[\cos^3(x)=\frac{ 1 }{ 8 }\]
\[\cos(x)=\sqrt[3]{\frac{ 1 }{ 8 }}\]

Answer 3

looks correct :=

Answer 4

do you need help from there ??

Answer 5

\[\huge\rm \sqrt{\frac{ a }{ b }} = \frac{ \sqrt{a} }{ \sqrt{b} }\]

Answer 6

same with \[\large\rm \sqrt[2]{\frac{ 1 }{ 8 }} =\frac{ \sqrt[3]{1} }{ \sqrt[3]{8}}\]