Math, asked by ParinaKakkad, 4 months ago

If tan 5A.tan4A =1 ;
find the value of A

Answers

Answered by sivaranjani7

0

Answer:

A = 10degree

Step-by-step explanation:

tan cot =1

tan4A = cot5A

tan4A = tan(90-5A)

4A = 90-5A

90 = 4A+5A

90 = 9A

A = 10 degree

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