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Question

Match the given statement in Column-I with one or more statement(s) in Column-II.

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Solution

(A) IA=rcosecA2,...

so, S2abc.(r3)sinA2.sinB2.sinC2=S2r34Rr.abc

=S2.r2.4Rabc

=(Sr)2.4Rabc

=Δ3=1
(B) b=ar,c=ar2,d=ar3 & a2+ar29=2ar14
a+ar2=2ar3 ...(i)
ar7+ar35=2ar218
ar+ar3=2ar26 ...(ii)
r(2ar3)=2ar26
r = 2 & a = -3
(C) limx0n⎢ ⎢ ⎢ ⎢eef(x)[11eef(x)]f(x)⎥ ⎥ ⎥ ⎥=1

limx0n[eef(x)1ef(x)]=1

limx0[eef(x)1f(x)]=e so, f(0) = 0
(D) Total page = 30, torn page 1 & 2
(E) limn0⎢ ⎢ ⎢ ⎢(1+n)1nen⎥ ⎥ ⎥ ⎥
=limn0e1nn(1+n)en=limn0e⎢ ⎢en(1+n)n11⎥ ⎥n

=limn0e[n(1+n)nn2]=e⎢ ⎢ ⎢nn22+....n2⎥ ⎥ ⎥

=e2
so, L = 2

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