Solve question No. 20
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tan(A+B)= tan 30
A+B=30.....(i)
tan(A-B) =tan 60
A-B= 60....(ii)
solving eqn (i) and (ii)
A=45 and B=15
A+B=30.....(i)
tan(A-B) =tan 60
A-B= 60....(ii)
solving eqn (i) and (ii)
A=45 and B=15
raviluck888oztu9l:
Thankss
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