Math, asked by kusumlatashahi, 1 month ago

Find the value of (987 X 10 x 561 - 1974 x 5 x 461) using a suitable property​

Answers

Answered by MaheswariS
1

\textbf{Given:}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461}

\textbf{To find:}

\textsf{The value of}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461}

\textbf{Solution:}

\textsf{Consider,}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461}

\mathsf{987{\times}10{\times}561-987{\times}2{\times}5{\times}461}

\mathsf{=987{\times}10{\times}561-987{\times}10{\times}461}

\mathsf{=9870{\times}561-9870{\times}461}

\mathsf{Using\;the\;identity,}

\boxed{\mathsf{a{\times}(b-c)=a{\times}b-a{\times}c}}

\mathsf{=9870{\times}(561-461)}

\mathsf{=9870{\times}100}

\mathsf{=987000}

\textbf{Answer:}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461=987000}

\textbf{Find more:}

Using identities evaluate : 98^2​

https://brainly.in/question/13270371

Evaluate using suitable identities 502 x 498​

https://brainly.in/question/20428692

Answered by AbhinavRocks10
3

Step-by-step explanation:

Given:

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461}987×10×561−1974×5×461

\textbf{To find:}

\textsf{The value of}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461}987×10×561−1974×5×461

\textbf\color{red}{Solution:}

\textsf\color{red}{Consider,}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461}987×10×561−1974×5×461

\mathsf{987{\times}10{\times}561-987{\times}2{\times}5{\times}461}987×10×561−987×2×5×461

\mathsf{=987{\times}10{\times}561-987{\times}10{\times}461}=987×10×561−987×10×461

\mathsf{=9870{\times}561-9870{\times}461}=9870×561−9870×461

\mathsf{Using\;the\;identity,}

\mathsf{=9870{\times}(561-461)}=9870×(561−461)

\mathsf{=9870{\times}100}=9870×100

\mathsf{=987000}

\textbf{Answer:}

\mathsf{987{\times}10{\times}561-1974{\times}5{\times}461=987000}987×10×561−1974×5×461=987000

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