[" Evaluate: "],[[" (i) "(sin18^(@))/(cos lambda2^(@))," (ii) "(tan26^(@))/(cot64^(@))," (iii) "cos48^(@)-sin42^(@)," (iv) "cosec31^(@)-sec59^(@)]]

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

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

Evaluate: (iii) cos 48^(@)-sin 42^(@)

(sin48^(@))/(cos42^(@))+(cos48^(@))/(sin42^(@))=2

Evaluate: cos48^(@)-sin42^(@)

((sin48^(@))/(cos42^(@)))+((cos48^(@))/(sin42^(@)))=2

Evaluate:(ii) tan26^@/Cot64^@

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^(@))

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^(@))

Evaluate:(iv) Cosec31^@-Sec59^@