tan (A+B) formula....please give me the correct formula.its urgent
rishu1113:
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Why I can't answer
(TanA +tanB)(1-tanAtanB)
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hi friend ur answer is in the above pic
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tan (A+B)
= sin(A+B)/cos(A+B)
=sinAcosB+cosAsinB/cosAcosB-sinAsinB
= sinAcosB+cosAsinB/cosAcosB/cosAcosB-sinAsinB/cosAcosB
=tanA+tanB/1-tanAtanB
formula of tan(A+B)= tanA+tanB/1-tanAtanB
= sin(A+B)/cos(A+B)
=sinAcosB+cosAsinB/cosAcosB-sinAsinB
= sinAcosB+cosAsinB/cosAcosB/cosAcosB-sinAsinB/cosAcosB
=tanA+tanB/1-tanAtanB
formula of tan(A+B)= tanA+tanB/1-tanAtanB
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