Math, asked by charithar526, 7 months ago

tan65° - tan20° - tan65° tan20°​

Answers

Answered by rakibahushen
9

Answer:

= 1

Step-by-step explanation:

= Tan20×tan70×tan25×tan65

= Tan20×tan(90-20)×tan25×tan(90-25)

= Tan20×cot20×tan25×cot25

As we know that cot =1/tan

= (Tan20×1/tan20) ×(tan25×1/tan25)

= 1×1

= 1

Answered by Anonymous
2

Answer:

1.

Step-by-step explanation:

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