A calculator has accuracy up to 8 digits after decimal place. The value of $$\int\limits_0^{2\pi } {\sin {\text{x dx}}} $$ when evaluated using this calculator by trapezoidal method with 8 equal intervals, to 5 significant digits is
A. 0.00000
B. 1.0000
C. 0.00500
D. 0.00025
Answer: Option A
This Question Belongs to Engineering Maths >> Numerical Methods
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Roots of the algebraic equation x3 + x2 + x + 1 = 0 are
A. (+1, +j, -j)
B. (+1, -1, +1)
C. (0, 0, 0)
D. (-1, +j. -j)
A. Only I
B. Only II
C. Both I and II
D. Neither I nor II
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