If sin 56^o=x, then express sin 34^o in terms of x.

If cos 47^o=a, then express sin 43^o in terms of a.

If sin 52^o=a, then express sin 38^o in terms of a.

Find the value of

(i) (ii)

(iii) (iv)

(v) (vi)

(vii) (viii)

(ix) sin 54° – cos 36° (x)

(xi) cosec 31° – sec 59° (xii)

(xiii)

Fill up the blanks :

(i) If sin 50^o=0.7660, then cos 40^o=……

(ii) If cos 44^o = 0.7193, then sin 46^o=…..

(iii) sin 50^o+cos 40^o = 2 sin (………)

(iv) Value of is ………