0 reads0 ratings0 helpful
If (A={0,1,2,3,4}) and (R={(a,b):a^2+b=3a}), how many diagonal pairs will (R) contain?यदि (A={0,1,2,3,4}) और (R={(a,b):a^2+b=3a}) है, तो (R) में कितने विकर्ण युग्म होंगे?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 33
Step 1: On the diagonal, put (b=a), giving (a^2+a=3a). Step 2: This becomes (a^2-2a=0), i.e. (a(a-2)=0). Step 3: (a=0) and (a=2) work, so there are (2) diagonal pairs.चरण 1: विकर्ण पर (b=a) रखने से (a^2+a=3a) मिलेगा। चरण 2: इसे (a^2-2a=0), यानी (a(a-2)=0) लिखते हैं। चरण 3: (a=0) और (a=2) काम करते हैं, इसलिए (2) विकर्ण युग्म हैं।
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
