tan100+2 tan 70° = Please give answer quickly​

Question

tan100+2 tan 70° =
Please give answer quickly​

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Gabriella 4 weeks 2021-08-20T10:00:28+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-08-20T10:01:30+00:00

    Answer:

    Solution:Tan100°+2Tan70°Tan100°=Tan(90°+10°)=−Cot10°Tan70°=Tan(90°−20°)=Cot20°Cot20°=Cot(10°+10°)Cot10°+Cot10°Cot10°Cot10°−1=2Cot10°Cot210°−1⟹−Cot10°+2(2Cot10°Cot210°−1)⟹−Cot10°+Cot10°Cot210°−Cot10°1⟹−Cot10°+Cot10°−Tan10°−Tan10°

    Step-by-step explanation:

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    0
    2021-08-20T10:02:02+00:00

    Answer:

    tan (90+10)+2tan (90-20)

    -cot (10+2)*cot 20

    -cot 10+2cot 20

    -1/tan 10+1/tan 20

    -1/tan 10+2/2tan 10

    -1+1-tan^2 10/tan 10

    = -tan 10.

    Step-by-step explanation:

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