कौन-सा विकल्प सामान्य द्विघात समीकरण नहीं है?
Which option is not a usual quadratic equation?
Explanation opens after your attempt
Correct Answer
C. \(\frac{1}{x^2}+x+2=0\)
Concept
\(\frac{1}{x^2}=x^{-2}\), which is not polynomial form. A usual quadratic equation does not have a negative power of the variable.
Why this answer is correct
The correct answer is C. \(\frac{1}{x^2}+x+2=0\). \(\frac{1}{x^2}=x^{-2}\), which is not polynomial form. A usual quadratic equation does not have a negative power of the variable.
Exam Tip
\(\frac{1}{x^2}=x^{-2}\) है, जो बहुपद रूप नहीं है। सामान्य द्विघात समीकरण में चर की ऋणात्मक घात नहीं होती।
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