Mathematics - Functions Question with Solution | TestHub

MathematicsFunctionsDomain-RangeHard2 minPYQ_2018
MathematicsHardmatching list

Let E1={x: x1 and xx-1>0} and E2={xE1: sin-1logexx-1 is a real number}

(Here the inverse trigonometric function sin-1x assumes values in -π2. π2.)
Let f:E1 be the function defined by fx=logexx-1
And g:E2R be the function defined by gx=sin-1logexx-1 .

LIST-ILIST-II
A. The range of f isP. -,11-eee-1, 
B. The range of g containsQ. (0, 1)
C. The domain of f containsR. -12,12
D. The domain of g isS. -,00, 
 T. -,ee-1
 U. ( ,0 )( 1 2 , e e1 ]

The correct option is:

Options:

Answer:
D
Solution:

E1:xx-1>0

E1: x-,01,
E2:-1lnxx+11
1exx-1e
Nowxx-1-1e0
e-1x+1ex-10

x ϵ -,11-e1,
Alsoxx-1-e0
e-1x-ex-10

x-,11-eee-1, 
As Range ofxx-1isR+-1
Range offisR-0or-, 00, 
Range ofgisπ2,π2-0orπ2, 00,π2
NowP4, Q2, R1, S1
HenceAis correct.

Stream:JEE_ADVSubject:MathematicsTopic:FunctionsSubtopic:Domain-Range
2mℹ️ Source: PYQ_2018

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