Paper II Mathematics

81. If the error committed in measuring the radius of the circle is 0.05%, then the corresponding error in calculating the area is
    (A) 0.05%
    (B) 0.0025%
    (C) 0.25%
    (D) 0.1%
    (E) 0.2%
82. If = , then the valus of P is
    (A) 
    (B) 
    (C) 
    (D) 2
    (E) 1


83. is equal to
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


84. is equal to
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


85. is equal to
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


86. is equal to
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


87. is equal to
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


88. is equal to
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


89. The integral equals
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 


90. The area of the plane region bounded by the curve x = y² – 2 and the line y = – x is (in square units)
    (A) 
    (B) 
    (C) 
    (D) 
    (E) 

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