Question

tan¹(x+1)+tan ¹(x-1)= tan -18 11 then 'x' is​

Answer 1

Answer:

Correct option is

C

41

tan−1(x+1)+tan−1318

tan−1(1−(x+1)(x−1)x+1+x−1)=tan−1318

⇒tan−1(1−x2+12x)=tan−1318

⇒2−x22x=318

⇒62x=16−8x2

⇒8x2+62x−16=0

⇒4x2+31x−8=0

⇒4x2+32x−8=0

⇒4x(x+8)−1(x+8

Answer 2

Answer:

not bro I am only girl

Step-by-step explanation:

step by step explanation