का मान किसके बराबर है?

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CTET (Mathematics & Science) Official Paper-II (Held On: 07 Jul, 2024)
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  1. -4c
  2. 2c
  3. b - c
  4. c - a

Answer (Detailed Solution Below)

Option 1 : -4c
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CTET CT 1: TET CDP (Development)
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Detailed Solution

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प्रयुक्त सूत्र-

a2 - b2 = (a - b)(a + b)

स्पष्टीकरण -

हमारे पास है: 

=

=

=

=

अतः विकल्प (1) सही उत्तर है।

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