evaluation se related questions ko ek jagah revise karein. Har question me bilingual content, answer feedback aur explanation available hai.
125 questions tagged with evaluation.
For the polynomial (P(x)=2x-3-5x-2+x-7), what is the value of (P(-1))?
A. (,-15,)
(P(-1)=2(-1)3-5(-1)2+(-1)-7=-15)। परीक्षा में ऋणात्मक मान रखते समय brackets जरूर लगाएं। / (P(-1)=2(-1)3-5(-1)2+(-1)-7=-15). In exams, always use brackets while substituting a negative value.
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If \(a^2=5\) and (a>0), what is the value of \(a^{-2}+a^2\)?
A. \(,\dfrac{26}{5},\)
क्योंकि \(a^{-2}=\dfrac{1}{a^2}=\dfrac{1}{5}\), इसलिए \(\dfrac{1}{5}+5=\dfrac{26}{5}\)। परीक्षा में \(a^{-2}\) को \(\dfrac{1}{a^2}\) लिखें। / Because \(a^{-2}=\dfrac{1}{a^2}=\dfrac{1}{5}\), \(\dfrac{1}{5}+5=\dfrac{26}{5}\). In exams, write \(a^{-2}\) as \(\dfrac{1}{a^2}\).
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If (a=2) and (b=-3), what is the value of \(a^2b-ab^2\)?
A. (,-30,)
(a-2b-ab-2=4(-3)-2(9)=-12-18=-30)। परीक्षा में ऋणात्मक संख्या का वर्ग हमेशा धनात्मक होता है। / (a-2b-ab-2=4(-3)-2(9)=-12-18=-30). In exams, the square of a negative number is always positive.
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For the polynomial (P(x)=x-3-4x+1), what is the value of (P(2))?
A. (,1,)
(P(2)=23-4(2)+1=8-8+1=1)। परीक्षा में substitution करते समय bracket का उपयोग करें। / (P(2)=23-4(2)+1=8-8+1=1). In exams, use brackets while substituting values.
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If (p(x)=x-2-2x-2), what is the value of (p\(\sqrt{2}\))?
A. \(-2\sqrt{2}\)
(p\(\sqrt{2}\)=\(\sqrt{2}\)2-2\sqrt{2}-2=2-2\sqrt{2}-2=-2\sqrt{2}) है। मान रखते समय (\(\sqrt{2}\)2=2) लिखें। / (p\(\sqrt{2}\)=\(\sqrt{2}\)2-2\sqrt{2}-2=2-2\sqrt{2}-2=-2\sqrt{2}). When substituting, write (\(\sqrt{2}\)2=2).
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