How do you simplify ${csc}^{2} 3 a - {cot}^{2} 3 a$ $csc^2 3a - cot^2 3a$ ?

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Answer 1 · 2018-04-28T16:11:29

1

We know that,

${csc}^{2} x - {cot}^{2} x = 1$ $color(red)(csc^2x-cot^2x=1$

Let, $x = 3 a$ $x=3a$

$:.csc^2(3a)-cot^2(3a)=1$

Is it simple to simplify ?

How do you simplify csc^2 3a - cot^2 3acsc23a−cot23acsc^2 3a - cot^2 3a?