Math, asked by sachinthacker78, 3 months ago

If tan7A . tan 3A =1. Then find the value of A

Answers

Answered by aparna4738
5

Answer:

A=9°

Step-by-step explanation:

tan7A. tan 3A =1

tan 7A= 1/tan3 A

tan 7A= cot 3A

cot(90-7A)= cot 3A

90-7A= 3A

=. 10A = 90

A=9°

Answered by anjalitalanje199
0

Answer:

Dear,

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Forum Trigonometry If tan 3A * tan 2A = 1 then what is the...

If tan 3A * tan 2A = 1 then what is the value of À?

Soniya, 3 years ago

Grade:10

1 Answers

Arun

25763 Points

3 years ago

Dear Soniya

tan 3A * tan 2A = 1

sin 3A sin2A = cos 3A cos 2A

Sin 3A sin2A - cos 3A cos 2A = 0

sin (3A -2A) = 0

Sin A = 0

Hence

A = 0°

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