असमानता (9-3x>0) का हल क्या है?
What is the solution of the inequality (9-3x>0)?
Explanation opens after your attempt
A. (x<3)
Concept
From (9-3x>0), we get (-3x>-9), so division by (-3) gives (x<3). Reversing the sign is necessary in negative division.
Why this answer is correct
The correct answer is A. (x<3). From (9-3x>0), we get (-3x>-9), so division by (-3) gives (x<3). Reversing the sign is necessary in negative division.
Exam Tip
(9-3x>0) से (-3x>-9), इसलिए (-3) से भाग देने पर (x<3)। ऋणात्मक भाग में चिह्न पलटना जरूरी है।
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