Evaluate the following : `(i) (cos 37^@)/(sin 53^@) (ii) (sin 41^@)/(cos 49^@) (iii) (tan 54^@)/(cot 36^@)`

Evaluate the following : (i) (sin58^(@))/(cos32^(@)) (ii) (sec42^(@))/("cosec"48^(@)) (iii) (tan37^(@))/(cot53^(@))

Evaluate the following: (cos37^(0))/(sin53^(0))( ii) (tan54^(@))/(cot36^(@)) (iv) (cos ec34^(0))/(sec56^(@))

Without using trigonometric tables, evaluate : (i) (sin16^@)/(cos 74^@) (ii) (sec 11^@)/(cosec 79^@) (iii) (tan 27^@)/(cot 63^@) (iv) (cos 35^@)/(sin 55^@) (v) (cosec 42^@)/(sec 48^@) (vi) (cot 38^@)/(tan 52^@)

Evaluate the following: sin36^(@)cos9^(0)+cos36^(@)sin9^(0)

Without using trigonometric tables, evaluate : (i) (cos 53^@)/(sin 37^@) (ii) (tan68^@)/(cot 22^@) (iii) (sec49^@)/(cosec 41^@) (iv) (sin 30^@17')/(cos 59^@43')

Without using trigonometric tables , evaluate : (i) (sin11^(@))/(cos79^(@)) (ii) (sec15^(@))/("cosec"75^(@)) (iii) (tan54^(@))/(cot36^(@)) (iv) (cos68^(@))/(sin22^(@)) (v) ("cosec"24^(@))/(sec66^(@)) (vi) (cot18^(@))/(tan72^(@))

(1) (sin18 ^ (@)) / (cos72 ^ (@)) (ii) (tan26 ^ (@)) / (cot64 ^ (@))

Without using trigonometric tables, evaluate each of the following : (i) sin^2 65^@+sin^2 25^@ (ii) cos^2 17^@- sin^2 73^@ (iii) cosec ^2 67^@-tan^223^@ (iv) sec^2 36^@-cot ^2 54^@ .

Without using the trigonometric tables, evaluate the following : (11)/(7) (sin 70^(@))/(cos 20^(@)) - (4)/(7) (cos 53^(@) "cosec" 37^(@))/(tan 15^(@) tan 35^(@) tan 55^(@) tan 75^(@))