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u0860867

  • one year ago

pls help trignometry question

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  1. u0860867
    • one year ago
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  2. UnkleRhaukus
    • one year ago
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    which one?

  3. u0860867
    • one year ago
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    all of them @UnkleRhaukus just want to check if the answer is right or not

  4. .Sam.
    • one year ago
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    A and D are correct

  5. .Sam.
    • one year ago
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    \[ \lim_{x\to \pi ^-}( \cot x) =-\infty \]

  6. Euler271
    • one year ago
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    my bad thought it was tanx not cotx

  7. .Sam.
    • one year ago
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    For D

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  8. .Sam.
    • one year ago
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    All good except E

  9. u0860867
    • one year ago
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    @.Sam. SO A and D are right what about b and c and e

  10. .Sam.
    • one year ago
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    \[ \lim_{x\to \left(\frac{\pi }{2}\right)^+} ( \tan x) =-\infty\]

  11. .Sam.
    • one year ago
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  12. u0860867
    • one year ago
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    So @.Sam. which all have i done right

  13. .Sam.
    • one year ago
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    All good except for E

  14. u0860867
    • one year ago
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    So how do we have to do e

  15. UnkleRhaukus
    • one year ago
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    @u0860867 i think you found \[\lim_{x\to\pi/2^-}\tan x=\infty\] but the question is \[\lim_{x\to\pi/2^+}\tan x\]

  16. Euler271
    • one year ago
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    E asks is the limit approaching from the right of pi/2

  17. .Sam.
    • one year ago
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    Yeah exactly unkle, we got the vertical asymptote at 3pi/2, So as x approaches pi/2, with asymptote at 3pi/2 you will get -infinity because its at the left side of the asymtotes

  18. .Sam.
    • one year ago
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    Picture

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  19. u0860867
    • one year ago
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    so i just ned to put a negative sign infront of my answer

  20. .Sam.
    • one year ago
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    Yes

  21. u0860867
    • one year ago
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    thanks @.Sam. and @UnkleRhaukus , @Euler271

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