Question

Will mark good answer brainliest and will report bad answers

Answer 1

Answer:

C

Step-by-step explanation:

(OA)^2 +(X-1)^2= X^2

(OA)^2 =X^2- (x^2 -2X +1)

(OA)^2 = X^2-X^2 +2X -1

OA =sqrt(2X-1)

OB =OA = sqrt(2X-1)