Math, asked by nitta123, 9 months ago

evaluate tan15×tan25×tan60×tan65×tan75-tan30

Answers

Answered by nikhil727298

2

Answer:

1

Step-by-step explanation:

i think it must be useful for u

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Answered by pikachu9591

2

Step-by-step explanation:

=tan15×tan25×tan60×cot(90-65)×cot(90-75)×cot(90-30)

=tan15×tan25×tan60×cot15×cot25×cot60

=1

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