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ashna
Group Title
If tan A  tan B = x and cot B  cot A =Y , pt COT (ab) = 1/X + 1/Y
 one year ago
 one year ago
ashna Group Title
If tan A  tan B = x and cot B  cot A =Y , pt COT (ab) = 1/X + 1/Y
 one year ago
 one year ago

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akash123 Group TitleBest ResponseYou've already chosen the best response.3
sin(AB)/ cosA*cosB =1/x from Tan A  tan B=x
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.3
and sin(AB)/ sinA* SinB=y from cotB cotA =y sin(AB)/ cosA*cosB =x from Tan A  tan B=x tanA*tanB= x/y
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
@akash123 sin(AB)/ cosA*cosB =x from Tan A  tan B=x
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.3
cot(AB) = [ cot A* cot B+1] / ( cot B  cot A)
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.3
yes...thanks...I have corrected it later
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.3
sin(AB)/ sinA* SinB=y from cotB cotA =y sin(AB)/ cosA*cosB =x from Tan A  tan B=x divide 2nd by 1st then u'll get tanA*tanB= x/y
 one year ago

ashna Group TitleBest ResponseYou've already chosen the best response.0
yes i understood that !
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.3
now use the identity cot(AB) = [ cot A* cot B+1] / ( cot B  cot A) and substitute the value of cot A* cot B and (cot B cot A) then u'll get the answer
 one year ago

akash123 Group TitleBest ResponseYou've already chosen the best response.3
another way @sauravshakya write the reciprocal f 1st and 2nd equation and add both then simplify it.
 one year ago

sauravshakya Group TitleBest ResponseYou've already chosen the best response.0
Yep... I would go with that....
 one year ago

ashna Group TitleBest ResponseYou've already chosen the best response.0
okay got it :) thank you !
 one year ago
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