Hello, can someone help me with this problem? I'm currently in 8th grade and studying binomial formulas. I actually understand the topic fairly well, but I'm stuck on this problem… Thanks for your help!
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Loading...I urgently need help. I don't understand anything. Every time I think I have the right approach, it's wrong. It is task 3) The solution and my approach here. (I know it's still in the parametric equation and not the plane equation, but I'm confused.) I don't know what to do ðŸ˜. Thanks in advance!!
Imagine you have a liter of cold water (vk= 8°C) and it is brought to a boil in a 1000W kettle. 1.How long does it take if the heat loss to the environment is taken into account with a heat capacity of the kettle (Kwk=550J/K)? 2. The kettle is left behind and only noticed after…
Can someone please explain to me how I can create a formula for these figures?
Unfortunately, I'm not making much progress with the task. In order to perform complete induction, the general arithmetic laws must be correct; unfortunately, I have a gap there. Would someone be able to help me with the induction step? I've already done the IA and IV. With A(n) -> n+1 I get or on 
Can someone please explain this to me LG
The form of the binary formula is always the same. This task is about identifying and using this pattern.
(x- __)2 = x2 – __ x + 121, this is the 2nd binary formula.
In the general form (a-b)2=a2-2ab+b2, the first undercoat would correspond to b, where the b2 on the right side corresponds to 121=112. So you can see what b is.
In the second step, you can calculate the second underline: what corresponds to 2ab.
Could you explain something more concrete for b)?
Is again the 2nd Binomic formula, as (a-b)2 =a2 -2ab+b2.
The task shows: (__x – __)2 = 9×2 – 24 x + __
It is again necessary to identify the parts of the pattern.
__x corresponds to a, 9×2 corresponds to a2. Since an x stands behind the undercoat and an x2 occurs in the 9×2, the term belonging to the undercoat must yield in square 9.
If you have it, you can find b over the Term -24 x, because it corresponds to -2ab. If you divide both through -2, you will find that 12x corresponds to the product – so if you divide 12x by x and divide by the number whose quadruple 9 corresponds, you have found b and can write it on the second underline in the clamp.
On the last underscore right follows, according to the pattern, b2, i.e. the square of the b you just found.
In these tasks, you must constantly analyze the terms as they correspond to the pattern of the Binomic formula, and then reveal what missing elements you can first find so that the others can be found in the next steps.
Okay, thanks.
Square=q, circle=k, triangle=d
Task 13b)
(qx-k)^2=9x^2-24x+d
q^2x^2-2kqx+k^2=9x^2-24x+d
(1) q^2 =9
(2) -2kq=-24
(3) k^2 =d
This gives 2 solution triples:
q1=-3, k1=-4, d=16
q2=3,k2=4,d=16
Task 13c)
(q-3a)(q+3a)=(0,1-ka)(0,1ka)
k=3, q=0,1
Task 13d)
q^2-k^2 =96
A solution is e.g.
10^2-2^2 =96
or
25^2-23^2 =96
At a) you have on the right side as a pure number
121. This is the square b2
(a-b)2 = a2 -2ab + b2
What’s b?