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Int 2 Maths problem! Please help! watch

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    Could someone help me on question 13 please.

    13.
    Solve the equation
    5 tan x ° – 6 = 2, 0 lower than equal to x greater than or equal to 360

    Thanks
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  1. File Type: txt Int2_Mathematics_Units-1-2-3-Paper-2_2007[1].txt (4.5 KB, 228 views)
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    5 tan x ° – 6 = 2 ?

    edit: Good. I got the question right.

    Simply:

    * Rearrange for tan x
    * Use the fact that the graph of tan x repeats itself every 180 degrees so tan x = tan (x + 180)
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    5 tan x ° – 6 = 2
    5tanx=8
    tanx=8/5
    you can use a cast diagram to get both the answers
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    Thanks much appreciated you two! It was the only question I didn't get right! Thanks again!
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    You're welcome.
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    Another quick question from 2001 paper 2

    a2(squared)(2a(powerof)-1/2 +a) in its simplest form.

    Sorry I don't how to do squared numbers and powers on the computer.

    Thanks
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    Use ^ as power or put [sup][ /sup] around the number ie 32
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    (Original post by ProudScottish)
    Another quick question from 2001 paper 2

    a2(squared)(2a(powerof)-1/2 +a) in its simplest form.

    Sorry I don't how to do squared numbers and powers on the computer.

    Thanks
    a^2(2a^{-\frac{1}{2}} + a) = 2a^{\frac{4}{2}-\frac{1}{2}} + a^3 = 2a^\frac{3}{2} + a^3

    Just remember a^ma^n = a^{m+n}.
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    Thanks roar will do that the next time!

    Thanks TheUnbeliever that has made so much sense! Thanks for that is much appreciated!
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    Been getting very high A's in all the past papers but this question came up which I am unsure about. Would someone be able to help me, please? Thanks again!
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  2. File Type: doc Maths Question.doc (58.5 KB, 111 views)
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    Circumference=theta/360 pi D
    where theta is the angle of the arc and D is the diameter of the circle
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    (Original post by ProudScottish)
    Been getting very high A's in all the past papers but this question came up which I am unsure about. Would someone be able to help me, please? Thanks again!
    Arc length = r \theta where r is radius (ie string length) and the angle is in radians
 
 
 

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