79584 45160 8452 30398 53444 68468

Question

79584    45160    8452    30398    53444    68468

Vishvajeet · Accepted Answer

Q.1     ???? 
??
??
?? ? = 1 ??? ? = ?2 + 3 ??
??
??
= 4
Sol. -   
??
??
= 2? 
 
??
??
??
??
= 2? 
 
??
??
= 2?
??
??

Put all values by given data 
 
??
??
= 2 × 1 × 4 = 8
Q2. 
    ????
??
??
   ?? ? = −2 ??? ? =  2?2 + 1, ??
??
??
= −1
Sol. – 
??
??
= 4? 
 
??
??
??
??
= 4?
??
??
= 2 × 2 ?
??
??

−1 = 4 × (−2) ×
??
??
 
 
??
??
=
1
8

Q.4 
Sol.  Given,  
??1
??
= 0.5Ω/min,
??2
??
= −1.1 Ω/???
?1 = 20Ω, R2 = 50Ω 
 
? =
?1?2
?1 + ?

79584 45160 8452 30398 53444 68468

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