rational distinct roots MCQ Questions for Class 10
rational distinct roots se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.
A. हमेशा वास्तविक, परिमेय और भिन्न/Always real, rational and distinct
Step 1
Concept
Here (D=4(a+4)2-4\(a^2+8a+15\)=4). Therefore roots are always real, rational and distinct.
Step 2
Why this answer is correct
The correct answer is A. हमेशा वास्तविक, परिमेय और भिन्न / Always real, rational and distinct. Here (D=4(a+4)2-4\(a^2+8a+15\)=4). Therefore roots are always real, rational and distinct.
Step 3
Exam Tip
यहाँ (D=4(a+4)2-4\(a^2+8a+15\)=4) है। इसलिए मूल हमेशा वास्तविक, परिमेय और भिन्न हैं।
A. वास्तविक, परिमेय और भिन्न/Real, rational and distinct
Step 1
Concept
(D=1) is a positive perfect square. Therefore the roots are real, rational and distinct.
Step 2
Why this answer is correct
The correct answer is A. वास्तविक, परिमेय और भिन्न / Real, rational and distinct. (D=1) is a positive perfect square. Therefore the roots are real, rational and distinct.
Step 3
Exam Tip
(D=1) धनात्मक पूर्ण वर्ग है। इसलिए मूल वास्तविक, परिमेय और भिन्न हैं।
