\(x^2+kx-20\) में यदि (x) का गुणांक (-11) है, तो (k+4) का मान क्या होगा?
In \(x^2+kx-20\), if the coefficient of (x) is (-11), what is the value of (k+4)?
Explanation opens after your attempt
C. (-7)
Concept
In (kx), the coefficient of (x) is (k), so (k=-11). Hence (k+4=-7).
Why this answer is correct
The correct answer is C. (-7). In (kx), the coefficient of (x) is (k), so (k=-11). Hence (k+4=-7).
Exam Tip
(kx) में (x) का गुणांक (k) है, इसलिए (k=-11)। अतः (k+4=-7)।
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