Question

if A B C are in ap and B=45 then tanAtanBtanC​

Answer 1

Answer:

since A,B,C are in AP

herefore , A+B=B+C

=>2B=A+C

=>90=A+C

A=90-C or C=90-A

now

tanAtanBtanC

=tan(90-C)tan45tan(90-A)

=CotC×1×CotA

=CotCCotA

hope that was helpful ^-^