Question

umple 24. Solve the following for x :
(i) sin (2 tan-1 x) = 1
(ISC 2011)​

Answer 1

Answer:

Step-by-step explanation:

2tan(tan-1x)/(1+tan^2(tan-1)x)=1                                       (sin2a=2tana/1+tan^2a

2x/(1+x^2)=1

2x=1+x^2

x^2-2x+1=0

(x-1)^2=0

so x=1