Question

Cosec^2 45° sin^2 45° - sec^2 60°

Answer 1

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$\underline{here \: is \: the \: answer}$
⬇⤵⏬⬇⏬⤵

cosec²45° sin²45° -sec²60°

⏩value of cosec²45° is(√2)²

⏩value of sin²45° is (1/√2)²

⏩value of sec²60° is 2

then according to the question

cosec²45° sin²45° -sec ²60°

2×1/2-2



2/2-2

-2 is the answer

$\bf{ hope \: it \: help}$
$\boxed{thanks}$