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kenneyfamily

  • 3 years ago

find the value of tan(A-B) if cos A=-3/5, sin B=5/13, 90 < A < 180, and 90 < B < 180 a) 33/56 b) 63/56 c) -33/56 d) -63/56

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  1. ajprincess
    • 3 years ago
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    |dw:1353213856188:dw||dw:1353214094399:dw||dw:1353214196521:dw||dw:1353214257688:dw| plug in the values and find. Can u find it @kenneyfamily?

  2. kenneyfamily
    • 3 years ago
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    let me try..this is great thanks

  3. kenneyfamily
    • 3 years ago
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    33/56! @ajprincess right?

  4. gohangoku58
    • 3 years ago
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    wouldn't tan A and tan b be both negative ? A,B are in 2nd quadrant.....

  5. ajprincess
    • 3 years ago
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    Since A and B are in the second quadrant tanA and tanB will be negative and ya @gohangoku58 u r right:) so it will be -33/56

  6. ajprincess
    • 3 years ago
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    Reaally sorrry for nt mentioning it at the beginning @kenneyfamily.

  7. ajprincess
    • 3 years ago
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    Is that clear @kenneyfamily?

  8. kenneyfamily
    • 3 years ago
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    yes thank you!!

  9. ajprincess
    • 3 years ago
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    welcome:)

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