Math, asked by pooja731, 1 year ago

(b) Using identities evaluate : 982​

Answers

Answered by MaheswariS
7

\textbf{Given:}

\mathsf{98^2}

\textbf{To find:}

\mathsf{The\;value\;of\;98^2\;using\;identity}

\textbf{Solution:}

\textsf{Consider,}

\mathsf{98^2}

\textsf{This can be written as}

\mathsf{=(100-2)^2}

\mathsf{Using\;the\;identity}

\boxed{\mathsf{(a-b)^2=a^2+b^2-2ab}}

\mathsf{=100^2+2^2-2(100)(2)}

\mathsf{=10000+4-400}

\mathsf{=9604}

\textbf{Answer:}

\mathsf{98^2=9604}

\textbf{Find more:}

Evaluate using suitable identities 502 x 498​

https://brainly.in/question/20428692

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