" (iii) "cos48^(@)-sin42^(@)quad " (iv) "cosec31^(@)-sec59^(@)

cos ec31 ^ (@) - sec59 ^ (@)

Evaluate: (iv) cosec 31^(@)-sec 59^(@)

Evaluate : (i) (sin18^@)/(cos72^@) (ii) (tan26^@)/(cot64^@) (iii) cos48^@-sin42^@ (iv) c o s e c 31^@sec59^@

Evaluate: cosec31^(@)-sec59^(@)

Evaluate cosec 31^(@) -sec 59^(@)

Evaluate cosec 31^(@) -sec 59^(@)

Evaluate : "cosec" 31^(@) - sec 59^(@)

Evaluate cosec 31^(@) -sec 59^(@)

Evaluate : "cosec "31^(@)-sec 59^(@) .