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JEE Mains · Maths · STD 12 - 7.2 definite integral

\(\int\limits_{0}^{5} \cos \left(\pi\left(x-\left[\frac{x}{2}\right]\right)\right) d x\) જ્યાં \([t]\) એ \(t\) કે તેથી નાના પૂર્ણાંકોમાં મહત્તમ પૂર્ણાંક દર્શાવે \(\dots\dots\dots\) છે.

  1. A \(-3\)
  2. B \(-2\)
  3. C \(2\)
  4. D \(0\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(0\)

Step-by-step Solution

Detailed explanation

\(I=\int\limits_{0}^{5} \cos \left(\pi x-\pi\left[\frac{x}{2}\right]\right) d x\) \(\Rightarrow I=\int\limits_{0}^{2} \cos (\pi x) d x+\int\limits_{2}^{4} \cos (\pi x-\pi) d x+\int\limits_{4}^{5} \cos (\pi x-2 \pi) d x\)…
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