[" That the difation sector is "30^(@)" ."],[" corresponding set(A-18^@ ) ," where " 2 A " is an acute angle,find the value of " A " ." "],[" If tan "(2A)=cot(A-18^(@))" ,where "2A" is an acute angle,find the value of "A" ."],[" Find how many integers between "200" and "500" are divisible by "8" ."]