Question

If A+B=(pi)/(2)rArr Tan A*Tan B=1rArr tan(A-B)=(tan A-tan B)/(1+tan A*tan B)=(tan A-tan B)/(2) rArr tan A=tan B+2tan(A-B) x=tan(5 pi)/(28)+2tan(pi)/(7) Then
1) x<1
2)x<1\√3
3)x<1/2
4)x<√3​

Answer 1

Answer:

sorry I didn't understand the question