Math, asked by deepsoni4, 11 months ago

cot5A*cot4A=1,find A​

Answers

Answered by OUFAtanki
0

Answer:

Step-by-step explanation:

cot5A = 1/ cot4A

cot5A= tan4A

tan( 90 - 5A ) = tan 4A

90-5A = 4A

9A = 90

A = 10

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