1.

`x` का मान ज्ञात करें। ‌जिसके लिए व्यंजक `2-3x-4x^(2)` का अधिकतम मान है?A. `41/16`B. `3/8`C. `-3/8`D. `41/16`

Answer» Correct Answer - D
`2-3x-4x^(2)=0`
`-4x^(2)-3x+2=0`
`ax^(2)+bx+c=0`
In quadratic equation
i when `agt0`
Minimum value `=(4ac-b^(2))/(4a)`
ii when `alt0`
Maximum value `=(4ac-b^(2))/(4a)`
`:.` In `-4x^(2)-3x-2`
`alt0`
`:.` Maximum value
`=` Maximum value
`(4x-4x2-(-3)^(2))/(4x-4)`
`=(-32-9)/(-16)=41/16`


Discussion

No Comment Found

Related InterviewSolutions