Question

If A+B+C=180∘ , then tanA+tanB+tanC is equal to

A) 2tanAtanBtanC

B) tanAtanBtanC

C) cotAcotBcotC

D) tanAtanBcotC

Answer 1

its B because solution is in image see

Answer 2

Hey mate !!!


this type of question is solved by putting value method ,


so you can save your time in compatitive exam


now solution :-.

with this attachment




here , you should check all Option , but if your mind works fast you can put value and get results !!!



hence , Option number "B " is correct !!!



thanks