किस विकल्प में डिग्री (4) है और अग्रणी गुणांक ऋणात्मक है?
Which option has degree (4) and a negative leading coefficient?
Explanation opens after your attempt
B. \(-5x^4+x^2-7\)
Concept
\(-5x^4+x^2-7\) has degree (4) and leading coefficient (-5). Therefore both conditions are satisfied.
Why this answer is correct
The correct answer is B. \(-5x^4+x^2-7\). \(-5x^4+x^2-7\) has degree (4) and leading coefficient (-5). Therefore both conditions are satisfied.
Exam Tip
\(-5x^4+x^2-7\) की डिग्री (4) है और अग्रणी गुणांक (-5) है। इसलिए दोनों शर्तें पूरी हैं।
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