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1. i am doing some maths homework, and for some reason i am stuck on this question:

Show that:

tanx (cos^2)x
-------------- = 1
sinx cosx

using identities: tan x = (sinx) / (cosx)
and: (cos^2)x + (sin^2)x = 1

2. (Original post by INTEGRATE_ME!!!)
i am doing some maths homework, and for some reason i am stuck on this question:

Show that:

tanx (cos^2)x
-------------- = 1
sinx cosx

using identities: tan x = (sinx) / (cosx)
and: (cos^2)x + (sin^2)x = 1

(tanx*cos^2x)/sinxcosx = (sinx/cosx*cos^2x)/sinxcosx =sinxcosx/sinxcosx = 1.
3. edders
4. (Original post by Ralfskini)
(tanx*cos^2x)/sinxcosx = (sinx/cosx*cos^2x)/sinxcosx =sinxcosx/sinxcosx = 1.
mmm....little confused.

please could you go through it step by step...sorry......
5. (Original post by EDDERS!)
edders
****K OFF WILL YOU, I AM THE ONLY MASKALL..SO ****INGG STOP TRYING TO COPY ME.

YOU ARE SICK IN THE HEAD.

I HATE PEOPLE WHO TRY TO FOLLOW ME.

I AM UNIQUE, SO **** OFF GAYBOY.

YOU ARE NOT MASKALL....I AM.......PISS OFF ****.
6. oooh, a maskall war..... interesting.
7. (tanx(cos^2)x)/(sinxcosx)

= (tanxcosxcosx)/(sinxcosx)

=(tanxcosx)/sinx times cosx/cosx

=(tanxcosx)/sinx times 1

=(tanxcosx)/sinx

=tanx times cosx/sinx

= sinx/cosx times cosx/sinx

=(sinxcosx)/(sinxcosx)

= 1
8. (Original post by elpaw)
ELPAW....PLEASE CUD U HELP ME ON THAT AMTHS QUESTION AMTE, I AM STRUGGLING WITH IT. PLEASE MATE.

YES, THAT GUY IS PRETENDING TO BE REBELLIOUS LIKE ME

I HATE THIS FOLLOWING TREND OF PEOPLE TRYIN TO COPY ME

MASKHOUND, BHAAL85, THIS GUY, AND A FEW OTHERS.

ANYWAYZ, PLEASE CUD U HELP ELPAW...I CANT DO THIS QUESTION BUDDY
9. (Original post by INTEGRATE_ME!!!)
ELPAW....PLEASE CUD U HELP ME ON THAT AMTHS QUESTION AMTE, I AM STRUGGLING WITH IT. PLEASE MATE.

YES, THAT GUY IS PRETENDING TO BE REBELLIOUS LIKE ME

I HATE THIS FOLLOWING TREND OF PEOPLE TRYIN TO COPY ME

MASKHOUND, BHAAL85, THIS GUY, AND A FEW OTHERS.

ANYWAYZ, PLEASE CUD U HELP ELPAW...I CANT DO THIS QUESTION BUDDY
http://users.ox.ac.uk/~chri1957/trig.gif
10. (Original post by elpaw)
http://users.ox.ac.uk/~chri1957/trig.gif
AHHHH.....I SEE........SO THE "DIVIDE BY COS X AND THE MULTIPLY BY COS X WHICH ARE BOTH ON THE NUMERATOR CANCEL EACHOTHER OUT, LEAVING SINX/SINX = 1.......

THANKS BUDDY!!!!!!!! GREAT!!!!!!!

THANKS TO DANIEL ASWELL..........
11. (Original post by INTEGRATE_ME!!!)
AHHHH.....I SEE........SO THE "DIVIDE BY COS X AND THE MULTIPLY BY COS X WHICH ARE BOTH ON THE NUMERATOR CANCEL EACHOTHER OUT, LEAVING SINX/SINX = 1.......

THANKS BUDDY!!!!!!!! GREAT!!!!!!!

THANKS TO DANIEL ASWELL..........
JESUS....THERES ONE MORE TO GO, AND ITS THE HARDEST ONE:

SHOW THAT:

3 + (sin^2)x
------------ = 2 -cosx
2 + cosx

i got ahlf way through, then collapsed.....grhjrh.....please guys.
Elpaw the genius to da rescue!!!!!
12. (Original post by INTEGRATE_ME!!!)
JESUS....THERES ONE MORE TO GO, AND ITS THE HARDEST ONE:

SHOW THAT:

3 + (sin^2)x
------------ = 2 -cosx
2 + cosx

i got ahlf way through, then collapsed.....grhjrh.....please guys.
Elpaw the genius to da rescue!!!!!
13. (Original post by INTEGRATE_ME!!!)
JESUS....THERES ONE MORE TO GO, AND ITS THE HARDEST ONE:

SHOW THAT:

3 + (sin^2)x
------------ = 2 -cosx
2 + cosx

i got ahlf way through, then collapsed.....grhjrh.....please guys.
Elpaw the genius to da rescue!!!!!
(3 + sin²x)/(2+cosx) = (4 - 1 + sin²x)/(2+cosx)
= (4 - (1 - sin²x))/(2+cosx)
= (4 - cos²x)/(2+cosx)
= (2 - cosx)(2+cosx)/(2+cosx)
= 2-cosx
14. (Original post by INTEGRATE_ME!!!)
i am doing some maths homework, and for some reason i am stuck on this question:

Show that:

tanx (cos^2)x
-------------- = 1
sinx cosx

using identities: tan x = (sinx) / (cosx)
and: (cos^2)x + (sin^2)x = 1

the solution is:

x2/T(cos)(sine)(1/tan)
x e/abc
15. (Original post by elpaw)
(3 + sin²x)/(2+cosx) = (4 - 1 + sin²x)/(2+cosx)
= (4 - (1 - sin²x))/(2+cosx)
= (4 - cos²x)/(2+cosx)
= (2 - cosx)(2+cosx)/(2+cosx)
= 2-cosx
SORRY! I DONT AHVE A CLUE ABOUT ANY OF THAT....PLEASE CUD U GO THROUGH IT STEP BY STEP......TOO HARD!!!

THANKS MATE.

YOU ARE VERY GOOD AT MATHS!!!
16. (Original post by INTEGRATE_ME!!!)
i am doing some maths homework, and for some reason i am stuck on this question:
..
maskall, i think you should be able to do that if you want to go to oxford
17. (Original post by edders)
maskall, i think you should be able to do that if you want to go to oxford
18. (Original post by edders)
maskall, i think you should be able to do that if you want to go to oxford
Too true! He's always posting stuff like this!
19. (Original post by Pikachu1)
santa claus
20. (Original post by edders)
maskall, i think you should be able to do that if you want to go to oxford
THIS QUESTION!!! ITS WELL HARD. I AM REALLY GOOD AT TRIG, I CAN DO ALL THE EXAM QUESTIONS ON TRIGONOMTRY, MUCH HARDER THAN THIS EVEN, BUT I DONT LIKE THESE IDENTITY "SHOW THAT" QUESTIONS. I CANT DO THIS 1.

DO THIS IF I WANNA GO TO OXFORD?
WE HAD A MOCK EXAM FOR P1THE OTHER DAY AND I GOT 86%.
WHICH IS PRETTY GOOD.

I JUST CANT DO THIS QUESTION.

AND ANYWAY, I AM CLEVERER THAN YOU, SO HOW CAN U COMMENT.

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