How do you verify trigonometric Identities: $cot^2 x +csc^2 x = 2csc^2 x - 1$ ?

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Answer 1 · 2015-04-27T15:36:53

$cot^2 x + csc^2 x = 2sec^2 x - 1$ .
$cos^2 x/sin^2 x$ + $1/sin^2 x$ = $(1 - sin^2 x + 1)/sin^2 x$ =

$(2 - sin^2 x)/sin^2 x$ = $2csc^2 x - 1$

How do you verify trigonometric Identities: cot^2 x +csc^2 x = 2csc^2 x - 1cot^2 x +csc^2 x = 2csc^2 x - 1?