tan(30+90)=tanA+tanB/1-tanAtanB
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tan(90+x)=-cot(x)
-cot(30)=-1.71432
-cot(30)=-1.71432
bsaimanideepchi:
i have done in short manner if you want big then you can have this
Plz rigtht side prove kro
ok
COS(A).SIN(B)+COS(B).SIN(A)/SIN((A).SIN(B)-COS(A).COS(B)
=SIN(A+B)/COS(A+B)
=TAN(A+B)
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