tan(A+B)=?
tan(A-B)=?
tan(A+B)=?
cot(A-B)=?
what is the formula
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tan(A+B)= tanA + tanB/1-tanA tanB
tan(A-B)=tanA-tanB/1+tanA tanB
tan(A-B)=tanA-tanB/1+tanA tanB
ssrathour45:
What about 3rd and 4th
3rd and first is same
sorry but what about 4th
cot(A-B)=cotA cotB+1/cotB-cotA
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