" I crsseadsl (iii) "sin((1)/(2)cos^(-1)(4)/(5))

sin((1)/(2)cos^(-1).(4)/(5)) is equal to

sin(cos^(-1)(4/5))

The value of sin((1)/(2)"cos"^(-1)(4)/(5)) is -

Evaluate sin(1/2cos^(-1)(4/5))

(i) If sin ^(-) x + sin ^(-1) y = pi//2 , then prove that : cos^(-1) x = sin^(-1) y (ii) Prove that : sin ((1)/(2) cos^(-1).(4)/(5))= (1)/sqrt(10) (iii) Prove that : tan ((1)/(2) cos^(-1).(sqrt(5))/(3)) = (3-sqrt(5))/(2)

Evaluate sin ((1) / (2) cos ^ (- 1) ((4) / (5)))

Evaluate (i) sin (cos^(-1) (3/5))

If |z-25i|le15 , then |maximum arg(z) - minimum arg(z)| equals (A) (pi)/(2)+cos^(-1)((3)/(5)) (B) sin^(-1)((3)/(5))-cos^(-1)((3)/(5)) (C) 2cos^(-1)((4)/(5)) (D) 2cos^(-1)((1)/(5))