Math, asked by NarasimhaKousthubh, 7 months ago

tan 40° + tan 80° - √3 tan 40° tan 80°​

Answers

Answered by Anonymous
5

Answer:

-√3

Step-by-step explanation:

tan (a+b) = tan a+ tan b/ 1-tan a+ tan b

120=80 +40

= tan 120=tan 80 +tan 40/1-tan80*tan 40

= -√3 = tan 80+tan 40/1-tan80*tan40

= -√3(1-tan 80*tan 40)= tan 80+tan 40

= -√3+√3 tan80*tan40= tan 80+ tan 40

= tan 80+ tan40-√3 tan 80-tan 40 = -√3

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