## britbrat4290 2 years ago Rewrite the expression in terms of the given function or functions. (sec x + csc x) (sin x + cos x) - 2 - cot x; tan x

1. Coolsector

tanx is the given function ?

2. britbrat4290

yea

3. britbrat4290

thats how its written

4. Coolsector

lets first look at : (secx + cscx)(sinx+cosx)

5. Coolsector

and you should know that secx = 1/cosx and cscx = 1/sinx

6. Coolsector

so can you simplify it ?

7. britbrat4290

what is cscx its not on my calc?

8. Coolsector

i just wrote it :) cscx = 1/sinx

9. britbrat4290

wow sry loll

10. Coolsector

so can you do it now ?

11. britbrat4290

1 sec

12. Coolsector

ok

13. britbrat4290

i get sec(x) for that prob up there

14. britbrat4290

and im wrong bc thats not a answer to choose from

15. Coolsector

lets do it together since i got something else. (secx + cscx)(sinx+cosx) = secxsinx + secxcosx + cscxsinx +cscxcosx = tanx + 1 + 1 + cotx

16. Coolsector

so (secx + cscx)(sinx+cosx) = 2 + cotx + tanx now lets add it to the rest : (secx + cscx)(sinx+cosx) - 2 - cotx = 2 + cotx + tanx -2 -2 - cotx = tanx

17. Coolsector

ill be back in some minutes i hope it is enough though

18. britbrat4290

i must not be puttin it i mcalc right

19. britbrat4290

2tan x??

20. britbrat4290

@Coolsector

21. Coolsector

@britbrat4290 hey im sorry im back now

22. Coolsector

as i wrote i got tanx

23. britbrat4290

shoot, ty

24. Coolsector

yw .. say hey to the dolphin

25. britbrat4290

:)