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MathsMediumMCQ2014 · 12 Apr Online

Q84.If [ ] denotes the greatest integer function, then the integral ∫π0 [cos xdx is equal to: (1) π (2) 0 2 (3) −1 (4) −π2

What This Question Tests

This question tests the ability to evaluate a definite integral involving the greatest integer function by splitting the integration interval based on the piecewise definition of the integrand.

Concepts Tested

Greatest Integer FunctionProperties of definite integrals

Formulas Used

∫[a,b] f(x) dx = ∫[a,c] f(x) dx + ∫[c,b] f(x) dx

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