[" Evaluate without using trignometre "],[" laldes "],[(cos18^(@))/(sin72^(@))]

Evaluate: (sin18^(@))/(cos72^(@))

Without using trignometric tables,find cos15^@

Find the value of (cos18^(@))/(sin72^@)

Evaluate : (sin 18^(@))/(cos72^(@))

Evaluate without using trigonometric tables : "cos"^(2) 26^(@)+"cos" 64^(@)"sin" 26^(@)+("tan" 36^(@))/("cot" 54^(@))

Without using trignometric tables,find sin105^@

Evaluate : (sin 18^(@))/(cos 72^(@))

Evalute: (b) (sin18^(@))/(cos72^(@))

Without using trignometric tables,find tan75^@