Math, asked by cheti3, 3 months ago

find the value : tan20.tan25.tan45.tan65.tan70

Answers

Answered by bhavyasri4107

1

Answer:

1

Step-by-step explanation:

tan20.tan25.tan45.tan65.tan70

= cot(90–20).cot(90–25).1.tan65tan70

= cot70.cot65.tan65.tan70

= 1

Answered by sangeetasingh8595766

1

Answer:

1

Step-by-step explanation:

tan20.tan25.tan45.tan65.tan70

=cot(90-20).cot(90-25).1.tan65tan70

=cot70.cot65.tan65.tan70

=1

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