Use tables to find sine of :

(i) 21°

(ii) 34° 42'

(iii) 47° 32'

(iv) 62° 57'

Use tables to find cosine of :

(i) 2° 4'

(ii) 8° 12'

(iii) 26° 32'

(iv) 65° 41'

Use tables to find the acute angle θ, if the value of sin θ is :

(i) 0.4848

(ii) 0.3827

Use tables to find the acute angle θ, if the value of cos θ is :

(i) 0.9848

(ii) 0.9574