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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'HSST(Jr) MATHEMATICS' And exam conducted in the year 2017. And Question paper code was '044/2017/OLE'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
B:-‘e% (3x)(Acos2x+Bsin2x)*
C:-Acos2x + Bsin2x
D:- Ax*(2)+Bx*(3)*
Correct Answer:- Option-B
Question93:-Solution of the equation \(1+2xy+y~(2))dx+(1+2xy+x*(2))dy=0° is
A: x+x*(2)ytxy*(2)+y=k>
B:-x+2x*(2)y+2xy*(2)+y=k°
C:-4x+4y=k*
D:-1+2xy+x*(2)+y*(2)=k*
Correct Answer:- Option-A
Question94:-Let ‘f(x)=sum_(n=1)*oob_(n)sinnx’ be the Fourier series of f(x) = x in the interval ‘[-pi, Pi]’ . Then ` 0. (7) =`
A:-0
8:-`(3)/(೧)`
൮)”
D:-* (2(-1)*(n+1)*)/(n)*
Correct Answer:- Option-D
Question95:-Laplace transform of ‘e*(at)sinbt’ is
¢: ~` (5)/(5^(2)+0^(2))
8:- ` (5-2)/((5-2) ^ (2)+0^(2))
©: 0/((5-2)^(2)+0^(2))
0:- 0/((5-2)^(2)-0^(2))
Correct Answer:- Option-C
Question96:-Two dimensional Laplace equation is
A:~ (del* (2)u)/(delt*(2))=c* (2)(del*(2)u)/(delx*(2))°
£:- (ദല (2)u)/(delx*(2))+(del*(2)u)/(dely*(2))=
C:-*(del* (2)u)/(delx*(2))+(del*(2)u)/(dely*(2)
D:-* (delu)/(delt)=c*(2)(del*(2)u)/(delx* (2))°
Correct Answer:- Option-B
Question97:-Value of the Beta function at *(1/2,1/2)° is
A:*beta(1/2,1/2)=Pi*
B:- beta(1/2,1/2)=sqrt(Pi)”
C:- beta(1/2,1/2)=(Pi)/(2)
0:- 6௦ (1/2,1/2)-1'
Correct Answer:- Option-A
Question98:-Value of the Riemann Zeta function * zeta‘ (s) at s = 2 is
A:-‘zeta(2)=1°
B:-‘zeta(2)=2!"
C:-‘zeta(2)=Pi/2*
0:- 2612(2) = (^ (2))/(6).
Correct Answer:- Option-D
Question99:-Let 82 and k be unit tangent vector, principal unit normal vector, binormal vector and curvature
respectively. Then
ಒತ್ತ ಪತ್
3
"
SI
4
9. FF
D:- $ ५९
Correct Answer:- Option-A
Question100:-Let A and B be fuzzy subsets of a crisp set X. If *mu_(A)(x)° and ` 111८1 (8) (2) ` ` are the membership value of x
in A and B respectively, then which of the following gives a membership value of x in മന്ന്
A:-max{mu_(A)(x), mu_(B)(x)}*
B:-*mu_(A)(x)+ mu_(B)(x)-mu_(A)(x)mu_(B)(x)°
C:-min{mu_(A)(x), mu_(B)(x)}*
D:-* 1-mu_(A)(x)mu_(B)(x)*