How do you simplify (1+ tanx) / (1- tanx)?
Answers
Answered by
3
Step-by-step explanation:
Solution
We know that
tan(A+B)=tanA+tanB / 1−tanAtanB
tan(π4)=1
Hence 1+tanx / 1−tanx
= tan(π4)+tanx / 1−tan(π4)tanx [as tan(π4)=1]
= tan(x+π4)
1+tan x/ 1−tan x= tan (x+π4)
Answered by
4
Step-by-step explanation:
by using identity, (a+b)(a-b)=a^2-b^2
=1-tan^2x
=cot^2x
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