Question

if tan B=2sina.sinr.cosec(a+r) then cota,cotB,cotr will be inwhich proration​

Answer 1

Answer:

2cotB

Step-by-step explanation:

The given relation is rewritten as

sinBsin(A+C)=2sinAsinCsinB

Divide both sides by sinAsinBsinC

sinAsinC

sin(A+C)

​

=2cotB

or cotA+cotC=2cotB

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