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corrected calculation MCQ Questions for Class 12
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Practice Questions
1 questions tagged with corrected calculation.
वास्तविक संख्याओं पर (a*b=a+b+4) दिया है। (10) का प्रतिलोम सही रूप से कौन सा है?
On real numbers, (a*b=a+b+4). Which is the correct inverse of (10)?
#binary operations
#inverse
#real numbers
#corrected calculation
A (-18)
B (-14)
C (14)
D (18)
Explanation opens after your attempt
Step 1
Concept
पहले तत्समक (e) निकालें। (a+e+4=a) से (e=-4) है। / First find the identity (e). From (a+e+4=a), (e=-4).
Step 2
Why this answer is correct
(10*x=-4) रखने पर (10+x+4=-4) इसलिए (x=-18) है। / Put (10*x=-4). Then (10+x+4=-4), so (x=-18).
Step 3
Exam Tip
प्रतिलोम में पहले तत्समक निकालना गलती से बचाता है। / Finding the identity first prevents mistakes in inverse questions.
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