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Evaluate the definite integration

(x + 1) dx

and choose the right answer:

This question was previously asked in
Bihar STET Paper I: Mathematics (Held In 2019 - Shift 1)
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  1. 10
  2. 12
  3. 14
  4. 16

Answer (Detailed Solution Below)

Option 2 : 12
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Detailed Solution

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Given:

f(x) = (x + 1) dx

Calculation:

⇒  (x + 1)dx = x dx  + 1 dx

⇒   + 

⇒  + 4 - 0

⇒ 8 + 4 = 12

∴ (x + 1) dx = 12

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