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Q1. If 𝑓(π‘₯) = 2|π‘₯ βˆ’ 1| and 𝑔(π‘₯) = 3π‘₯ βˆ’ 10,


then π‘“π‘œπ‘”(1) = 12.


Q2. (√2, 1,1/2)∈ 𝑸 Γ— 𝒁 Γ— 𝑹.


Q3. The domain of the function f defined by 𝑓(π‘₯)


=√{(3-x)/(x-2)} is R-{2}.

Represent the rational functioο»Ώn f(x)=1/3x-1 using its table values and graph

x=R^n



x=(x1,x2,x3,x4,....,xn).



y=(y1,y2,y3,y4,....,yn)



d(x,y)=√((x1-y1)^2+(x2-y2)^2+(x3-y3)^2+......+(xn-yn)^2)



Show that d is metric on x

For an example of a discontinuous linear functional on a normed linear space


prove ||Ax|| < ||A|| ||x||


Example of metric space but not norm

Let (X,d) be a metric space and consider the subset A βŠ‚ X and B βŠ‚ X . Show that the closure satisfies the following property closure( A βˆͺ B) =closure(A) βˆͺ closure(B)


Show that a norm on a vector space X is a sublinear functional on X




If a function f is not defined at x = a then the limit lim f(x) as x approaches a never exists. true or false


Let x1 x2 … . . xn, be an orthonormal set in X and π‘˜1 ,π‘˜2,. … … … 

π‘˜nbe scalars

having absolute value 1. Then π‘˜1x1 + π‘˜ 2x 2+ β‹― … π‘˜ nxn= x1 + β‹― +Β 

xn



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