असमानता (9-x<4) का सही हल क्या है?
What is the correct solution of (9-x<4)?
Explanation opens after your attempt
A. (x>5)
Concept
From (9-x<4), we get (-x<-5), and dividing by a negative gives (x>5). The sign reverses when removing (-x).
Why this answer is correct
The correct answer is A. (x>5). From (9-x<4), we get (-x<-5), and dividing by a negative gives (x>5). The sign reverses when removing (-x).
Exam Tip
(9-x<4) से (-x<-5) और ऋणात्मक से भाग देने पर (x>5)। (-x) हटाते समय चिह्न पलटता है।
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