फलन (f(x)=\frac{1}{\sqrt{x-2+6x+10}}) का परिसर कौन सा है?
Which is the range of (f(x)=\frac{1}{\sqrt{x-2+6x+10}})?
Explanation opens after your attempt
A. ((0,1])
Concept
Since (x-2+6x+10=(x+3)2+1\ge 1), the denominator has minimum value (1). Therefore (0<f(x)\le 1).
Why this answer is correct
The correct answer is A. ((0,1]). Since (x-2+6x+10=(x+3)2+1\ge 1), the denominator has minimum value (1). Therefore (0<f(x)\le 1).
Exam Tip
क्योंकि (x-2+6x+10=(x+3)2+1\ge 1), हर का न्यूनतम मान (1) है। इसलिए (0<f(x)\le 1)।
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