Question

$\large{\underbrace{\underline{\color{red}{\bf{Question}}}}}$

$\large{{\underline{\color{green}{\bf{prove \: that - }}}}}$
$cos \: 6x = 32 {cos}^{6}x - \: 48 {cos}^{4} x + 18 {cos}^{2} x - 1$

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Answer 1

Answer:

$\large{\underbrace{\underline{\color{red}{\bf{Question}}}}}$

$\large{{\underline{\color{green}{\bf{prove \: that - }}}}}$

$cos \: 6x = 32 {cos}^{6}x - \: 48 {cos}^{4} x + 18 {cos}^{2} x - 1$

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Answer 2

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