pls answer this its urgent
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Answers
Answered by
1
So here is the answer...
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mohi121:
thanks once again
Answered by
1
(1+tanA)(1-tanB)
=
1 - tanB + tanA - tanAtanB
..........................................................
TOO
............................................................
tan(A-B) = tanA-tanB/1+tanAtanB
.......................................................
1 =tanA-tanB/1+tanAtanB
.............................................
tanA-tanB=1+tanAtanB
........................................
SO
............................................
(1+tanA)(1-tanB) = 2
=
1 - tanB + tanA - tanAtanB
..........................................................
TOO
............................................................
tan(A-B) = tanA-tanB/1+tanAtanB
.......................................................
1 =tanA-tanB/1+tanAtanB
.............................................
tanA-tanB=1+tanAtanB
........................................
SO
............................................
(1+tanA)(1-tanB) = 2
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