Mathematics Answer, Explanation and Revision Hints
वास्तविक संख्याओं पर (a*b=a+2b) परिभाषित है। क्या यह संक्रिया सहचारी है? / On real numbers, (a*b=a+2b) is defined. Is this operation associative?
Correct Answer: B. नहीं / No. Explanation: चरण 1: सहचारीता के लिए ((a*b)*c) और (a*(b*c)) की तुलना करें। चरण 2: ((a*b)*c=(a+2b)+2c=a+2b+2c), जबकि (a*(b*c)=a+2(b+2c)=a+2b+4c)। चरण 3: दोनों सामान्यतः बराबर नहीं हैं, इसलिए संक्रिया सहचारी नहीं है। / Step 1: For associativity, compare ((a*b)*c) and (a*(b*c)). Step 2: ((a*b)*c=a+2b+2c), while (a*(b*c)=a+2b+4c). Step 3: Since these are not generally equal, the operation is not associative.
Why is option B correct in this Mathematics MCQ?
((a*b)*c=(a+2b)+2c=a+2b+2c), जबकि (a*(b*c)=a+2(b+2c)=a+2b+4c)। / ((a*b)*c=a+2b+2c), while (a*(b*c)=a+2b+4c).
What should I remember for this Mathematics concept?
दोनों सामान्यतः बराबर नहीं हैं, इसलिए संक्रिया सहचारी नहीं है। / Since these are not generally equal, the operation is not associative.
Login to view answers
Use Google login or mobile OTP. Admin can block users and control login providers.
Privacy preferences
Hum essential cookies/session ka use login, class selection aur security ke liye karte hain. Analytics, marketing aur personalized ads optional hain.