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Maths Questions, Please Help People. watch

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    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

    i am struggling on this, please help. taa.
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    (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

    i am struggling on this, please help. taa.
    (tanx*cos^2x)/sinxcosx = (sinx/cosx*cos^2x)/sinxcosx =sinxcosx/sinxcosx = 1.
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    edders
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    (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......
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    (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 ****.
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    oooh, a maskall war..... interesting.
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    (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
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    (Original post by elpaw)
    oooh, a maskall war..... interesting.
    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
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    (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
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    (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..........
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    (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 am having real difficulty with this one. please help!!
    i got ahlf way through, then collapsed.....grhjrh.....please guys.
    Elpaw the genius to da rescue!!!!!
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    (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 am having real difficulty with this one. please help!!
    i got ahlf way through, then collapsed.....grhjrh.....please guys.
    Elpaw the genius to da rescue!!!!!
    please elpaw!!!!!!!!!!! anyone!
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    (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 am having real difficulty with this one. please help!!
    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
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    (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

    i am struggling on this, please help. taa.
    the solution is:

    x2/T(cos)(sine)(1/tan)
    x e/abc
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    (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!!!
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    (Original post by INTEGRATE_ME!!!)
    i am doing some maths homework, and for some reason i am stuck on this question:
    ..
    i am struggling on this, please help. taa.
    maskall, i think you should be able to do that if you want to go to oxford :rolleyes:
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    (Original post by edders)
    maskall, i think you should be able to do that if you want to go to oxford :rolleyes:
    who is Maskall?
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    (Original post by edders)
    maskall, i think you should be able to do that if you want to go to oxford :rolleyes:
    Too true! He's always posting stuff like this!
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    (Original post by Pikachu1)
    who is Maskall?
    santa claus
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    (Original post by edders)
    maskall, i think you should be able to do that if you want to go to oxford :rolleyes:
    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.

    COMPARE GCSE GRADES SHALL WE?
 
 
 
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