यदि a-b= 3 और a^2 + b^2 =29 , तो ab का मान ज – McqOptions

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1.	यदि a-b= 3 और a^2 + b^2 =29 , तो ab का मान ज्ञात कीजिए -
A.	21
B.	10
C.	13
D.	17
Answer» C. 13

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