1.

Neumerical value of tan(20°)×tan(80°)×cot(50°) is equal to?

Answer»

Answer:

0.8390996311

Step-by-step explanation:

TAN(20)=sin20/COS(20)

tan(80)=sin80/cos80=sin(90-20)/cos(90-20)=cos20/sin20

therefor sin20/cos20  * cos20/sin20 =1

=cot(50)*1

=cot 50=1/tan(50) =0.8390996311



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