Math, asked by jatinsavaliya353, 2 months ago

9cosec^2 A - 9cot^2 A

Answers

Answered by suhail2070

1

Answer:

$9 { \cot(2a) }^{2} - 9 { \cot(a) }^{2} = 9 \: \: \: (answer)$

Step-by-step explanation:

$9 { \csc(2a) }^{2} - 9 { \cot(2a) }^{2} = 9( { \csc(2a) }^{2} - { \cot(2a) }^{2} ) \\ = 9(1) \\ \\ = 9$

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