## u0860867 2 years ago pls help trignometry question

1. u0860867

2. UnkleRhaukus

which one?

3. u0860867

all of them @UnkleRhaukus just want to check if the answer is right or not

4. .Sam.

A and D are correct

5. .Sam.

$\lim_{x\to \pi ^-}( \cot x) =-\infty$

6. Euler271

my bad thought it was tanx not cotx

7. .Sam.

For D

8. .Sam.

All good except E

9. u0860867

@.Sam. SO A and D are right what about b and c and e

10. .Sam.

$\lim_{x\to \left(\frac{\pi }{2}\right)^+} ( \tan x) =-\infty$

11. .Sam.

12. u0860867

So @.Sam. which all have i done right

13. .Sam.

All good except for E

14. u0860867

So how do we have to do e

15. UnkleRhaukus

@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

E asks is the limit approaching from the right of pi/2

17. .Sam.

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.

Picture

19. u0860867

so i just ned to put a negative sign infront of my answer

20. .Sam.

Yes

21. u0860867

thanks @.Sam. and @UnkleRhaukus , @Euler271