Question

If sinA=√3/2andtanB=√3,prove that cos(A-B)=1 ,where A and B both are acute angle

Answer 1

Answer:

Step-by-step explanation:

sinA=√3/2 (Given)

∴A=60

Also, tanB=√3

∴B=60

∴cos (A-B)=cos0

                =1

HENCE PROVED