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1.Relation and Function
normal
$x = - 3$ के लिए व्यजंक $\left| {\;\frac{{3{x^3} + 1}}{{2{x^2} + 2}}\;} \right|$ का आंकिक मान है
A
$4$
B
$2$
C
$3$
D
$0$
Solution
(a)${\left| {\frac{{3{x^3} + 1}}{{2{x^2} + 2}}} \right|_{x = – 3}} = \left| {\frac{{3( – 27) + 1}}{{2(9) + 2}}} \right| = \left| {\frac{{ – 80}}{{20}}} \right| = 4$.
Standard 12
Mathematics