How do you solve $tan^2 x - 1 = 0$ ?

1 Answer

Jul 29, 2016

$x=45^@$
$x=-45^@$

Explanation:

$tan^2x-1=0$
or
$tan^2x=1$
or
$tanx=sqrt(1)$
or
$tanx=+-1$
or
$x=tan^-1 (1)$
or
$x=45^@$ ---------Ans $1$
or
$tan^-1 (-1)$
or
$x=-45^@$ --------Ans $2$

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How do you solve $tan^2 x - 1 = 0$ ?

1 Answer

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