Question

if f(x)=sin^-1x +cos^-1x+2 then f 1 =0

Answer 1

Answer:

We know, cos^−1 θ+sin^−1 θ=2π  

∴cos^−1x−sin^−1x=0

⇒cos^−1x− π/2+cos^−1x=0

⇒2cos^−1 x= π/2 ⇒cos^-1x= π/4

⇒x=  1/$\sqrt{2}$ => ANSWER

MAR AS 'BRAINIEST" ANSWER.

Step-by-step explanation: