MCQ
निम्न में से कौन सही है ?
  • A
    $(a-b)^2=a^2+2 a b-b^2$
  • $(a-b)^2=a^2-2 a b+b^2$
  • C
    $(a-b)^2=a^2-b^2$
  • D
    $(a+b)^2=a^2+2 a b-b^2$

Answer

Correct option: B.
$(a-b)^2=a^2-2 a b+b^2$
(b)

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free