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Question Number 206037 by Davidtim last updated on 05/Apr/24
is it a polynomial? x^3 −2x^2 +(√x^2 )+10
isitapolynomial?x3−2x2+x2+10
Answered by Frix last updated on 05/Apr/24
f(x)=x^3 −2x^2 +(√x^2 )+10 x∈R ⇒ (√x^2 )=∣x∣ ⇒ f(x)= { ((x^3 −2x^2 −x+10; x<0)),((x^3 −2x^2 +x+10; x≥0)) :} This is not a polynomial.
f(x)=x3−2x2+x2+10x∈R⇒x2=∣x∣⇒f(x)={x3−2x2−x+10;x<0x3−2x2+x+10;x⩾0Thisisnotapolynomial.
Answered by BaliramKumar last updated on 05/Apr/24
yes
yes

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