Given ,find the value of
Follow Math Help Forum on Facebook and Google+
hELLO, mastermin346! We need two identities: . . . . Given: , find the value of Therefore: .
tan A= tan(2*A/2)=2tan(A/2)/[1-tan^2(A/2)]=4/3. cot A=1/tan A=3/4.
View Tag Cloud