show that (1+tan20) ( 1+tan25) = 2 .
[use tan(A+B) = tan A+tan B
1-tanA+tanB ]
srlkhu:
the Q. isn't ri8 the Q is ( 1+ tan 25) = 2 .[ use tan(A+B) = tanA+tanB/ 1- tanAtanB
teekse dekh .. :P
no no lilly she is right you have given the formula wrong
yo pilla chushnava im ri8 samma told me abba bolriun na
no rude comments plz
god shez my bestie dude
any ways okay! cool!
any ways okay! cool!
Answers
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1+ tan25 + tan20 + tan20tan25 +1 - 1
2 + tan(25 + 20)(1 - tan20tan25) - (1 - tan20tan25) { using the formula you gave ie use tan(A+B) = tanA+tanB/ 1- tanAtanB}
2 + (1 - tan20tan25)(tan45 - 1)
2 + (1 - tan20tan25)(1 - 1)
2 + 0
= 2 PROVED
2 + tan(25 + 20)(1 - tan20tan25) - (1 - tan20tan25) { using the formula you gave ie use tan(A+B) = tanA+tanB/ 1- tanAtanB}
2 + (1 - tan20tan25)(tan45 - 1)
2 + (1 - tan20tan25)(1 - 1)
2 + 0
= 2 PROVED
plz post it i will answer it tomorrow today my time is over sorry
i cant post any more Q :( thats what is the prob.
at what time are u gonna be up morrow??
at 3:30 pm
pm or am??
esnd me the frnd request and write the question in my message i will answer it
pm
i need it in the morning i gotta submit morrow
do u have fb??
coz i ahve to know the ans. ri8 know
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