" 10."sin x=(1)/(4),x" in quadrant "Pi

sin x = 1/4 ,x in quadrant II

Find sin ""(x)/(2), cos "" (x)/(2) and tan "" (x)/(2) in each of the case: sin x = (1)/(4), x in II quadrant.

Find sin x/2 ,cos x/2 and tan x/2 of the following : sin x =1/4, x in quadrant II.

If 0<=x<=pi and x lies in the IInd quadrant such that sin x=(1)/(4)* find the values of (cos x)/(2),(sin x)/(2) andtan (x)/(2)

If sin ^(-1) x =(pi)/(4) , find the value of cos^(-1) x .

If sin ^(-1) x =(pi)/(4) , find the value of cos^(-1) x .

Prove that (i) cos (n + 2) x cos (n+1) x +sin (n+2) x sin (n+1) x = cos x) (ii) " cos " .((pi)/(4)-x) " cos " .((pi)/(4)-y) " - sin " ((pi)/(4)-x ) " sin " ((pi)/(4) -y) =" sin " (x+y)