If sec 4A = cosec (A -20),where 4A is an acute angle, find the value o

1.	If sec 4A = cosec (A -20),where 4A is an acute angle, find the value of A
Answer» since sec(90-theta)=cosec thetasec[90-(A-20)]=sec4Aon comparing 90+20-A=4A110=5AA=22 A= 22 22

Discussion