Math, asked by Ashishkumar098, 10 months ago

Heya!! ❤️

Prove that ,

tan ( B - C ) + tan ( C - A ) + tan ( A - B ) = tan ( B - C ) tan ( C - A ) tan ( A - B )


Thanks !​


wardahd1234: OK

Answers

Answered by Swarup1998
8
\underline{\textsf{Solution :}}

\mathsf{Now,\:tan(A-B)}
\mathsf{-tan(B-C)\:tan(C-A)\:tan(A-B)}

\small{\mathsf{=tan(A-B)\{1-tan(B-C)\:tan(C-A)\}}}

\mathsf{=tan(A-B)\frac{tan(B-C)+tan(C-A)}{tan(B-C+C-A)}}

\mathsf{=tan(A-B)\frac{tan(B-C)+tan(C-A)}{tan(B-A)}}

\mathsf{=tan(A-B)\frac{tan(B-C)+tan(C-A)}{-tan(A-B)}}

\mathsf{=-tan(B-C)-tan(C-A)}

\to \tiny{\mathsf{tan(A-B)-tan(B-C)\:tan(C-A)\:tan(A-B)}}
\mathsf{= -tan(B-C)-tan(C-A)}

\to \small{\mathsf{tan(A-B)+tan(B-C)+tan(C-A)}}
\mathsf{=tan(A-B)\:tan(B-C)\:tan(C-A)}

\textsf{Hence, proved.}

Anonymous: Great :)
Swarup1998: :)
Answered by Anonymous
0

ANSWER:---------

tan(B−C)tan(C−A)tan(A−B)

=tan(A−B){1−tan(B−C)tan(C−A)}\small{\mathsf{=tan(A-B)\{1-tan(B-C)\:tan(C-A)\}}}=tan(A−B){1−tan(B−C)tan(C−A)}

=tan(A−B)tan(B−C)+tan(C−A)tan(B−C+C−A)\mathsf{=tan(A-B)\frac{tan(B-C)+tan(C-A)}{tan(B-C+C-A)}}=tan(A−B)

tan(B−C+C−A)

tan(B−C)+tan(C−A)

=tan(A−B)tan(B−C)+tan(C−A)tan(B−A)\mathsf{=tan(A-B)\frac{tan(B-C)+tan(C-A)}{tan(B-A)}}=tan(A−B)

tan(B−A)

tan(B−C)+tan(C−A)

=tan(A−B)tan(B−C)+tan(C−A)−tan(A−B)\mathsf{=tan(A-B)\frac{tan(B-C)+tan(C-A)}{-tan(A-B)}}=tan(A−B)

−tan(A−B)

tan(B−C)+tan(C−A)

=−tan(B−C)−tan(C−A)\mathsf{=-tan(B-C)-tan(C-A)}=−tan(B−C)−tan(C−A)

→tan(A−B)−tan(B−C)tan(C−A)tan(A−B)\to \tiny{\mathsf{tan(A-B)-tan(B-C)\:tan(C-A)\:tan(A-B)}}→tan(A−B)−tan(B−C)tan(C−A)tan(A−B)

=−tan(B−C)−tan(C−A)\mathsf{= -tan(B-C)-tan(C-A)}=−tan(B−C)−tan(C−A)

→tan(A−B)+tan(B−C)+tan(C−A)\to \small{\mathsf{tan(A-B)+tan(B-C)+tan(C-A)}}→tan(A−B)+tan(B−C)+tan(C−A)

=tan(A−B)tan(B−C)tan(C−A)\mathsf{=tan(A-B)\:tan(B-C)\:tan(C-A)}=tan(A−B)tan(B−C)tan(C−A)

hope it helps:-------

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T!—!ANKS!!!!


Anonymous: Correct your answer u used wrong latex symbols
Anonymous: yes...
Anonymous: mm
Anonymous: symbol...yes ..wro g..
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