if y=x×x-x-12 then (x,y) please answer this question
Answers
Step-by-step explanation:
1
12
If X+1=X , then what is the value of X?
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Bruce Alan Martin
Updated March 19, 2018
The assertion that X equals X+1 is false, if X represents a real number and the “+” represents addition.
In an IF/THEN statement, IF the assertion is false, THEN anything that follows may be true. Since X=X+1 is false, ANY value for X is equally valid (or invalid).
For any natural number {1,2,3,…}, X+1 is greater than and cannot be equal to X. The assertion “X=X+1” is also false if X is an integer {…,-2,-1,0,1,2,3,4,5,…} or a rational number {1/1, 1/2, 2/1, 1/3, 2/3, 3/2, 1/4, …} or even if X is a complex number (such as 3+2i).
Of course it is possible to interpret the symbols differently, e.g.
defining the “+“ to be some operation other than addition,
or by having either “X“ or “1” represent an element of some other set,
or even by defining an algebra in which X=X+1 is true for some cases
(Think of an algebra with only one possible element {X}
or an algebra in which “1” serves as the additive identity.)
The above also assumes that, in your question, the “=” symbol was meant to indicate the assertion of equality — which is commutative, so that “X+1=X” has the same meaning as “X=X+1”. If X represents a finite number, X cannot ever equal X+1; while “X=X+1” is a valid statement, it asserts something that is false.
Answer:
hey
Step-by-step explanation:
answer..
We have, y=x
x
Taking log on both the sides, we get
logy=xlogx
On differentiating w.r.t. x, we get
y
1
dx
dy
=
x
x
+logx
⇒
dx
dy
=y+ylogx
⇒
dx
dy
=x
x
(1+logx) ....(∵y=x
x
)
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