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How do you solve $3sec^2x-4=0$ ?

1 Answer

Apr 26, 2018

$x=pi/6+2pin$ $color(green)(rarr "where n"in Z$

Explanation:

$3sec^2x-4=0$

$3sec^2x=4$

$sec^2x=4/3$

$color(green)(secx=1/cosx$

$1/cos^2x=4/3$

$cos^2x=3/4$

$cosx=sqrt3/2$

$x=pi/6+2pin$ $color(green)(rarr "where n"in Z$

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