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Prove that 1+cot²A=cosec²A​
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Prove that 1+cot²A=cosec²A​

User Ophelie
by
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1 Answer

9 votes

Answer:

see explanation

Explanation:

Consider the left side

1 + cot²A

= 1 +
(cos^2A)/(sin^2A)

=
(sin^2A+cos^2A)/(sin^2A)

=
(1)/(sin^2A)

= cosec²A

= right side, thus proven

User Dmitriusan
by
5.1k points
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