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Question

Match List-I with List-II and select the correct answer using the code given below. A B C D

List-I
List-II
a) Equation of tangent to the curve y=bex/a at x=0

1) x2y=2

b) Equation of tangent to the curve y=x2+1 at (1,2)
2) y=2x
c) Equation of normal to the curve y=2xx2at (2,0)

3) xy=π

d) Equation of normal to the curve y=sinx at x=π
4) xa+yb=1

A
4 1 2 3
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B
4 2 1 3
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C
1 2 3 4
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D
1 4 3 2
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Solution

The correct option is B 4 2 1 3
(A) y=baex/a
m=ba
(yb)=ba(x0)
xa+yb=1
(B) y=2x
y|x=1=2
(y2)=2(x1)
y=2x
(C) y=22x
y|x=2=2
Slope of normal =12
(y0)=12(x2)
2y=x2
(D) y=cosx
y|x=π=1
Slope of normal =1
(y0)=1(xπ)
xy=π

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