the value oftan 70o- tan 20 o - 2 tan 40o ???
mansi dabriwal , 9 Years ago
Grade 12th pass
Trigonometry> the value of tan 70 o - tan 20 o - 2 tan ...
3 Answers
ng29
Last Activity: 9 Years ago
hey mansi
are u sure that its tan 40 in the question i had solved it for tan50
reply
mansi dabriwal
Last Activity: 9 Years ago
yah...i got this question in arihant cd of bitsat u cn cross check...
ng29
Last Activity: 9 Years ago
then its answer may be 4 tan100
tan 70o - tan 20 o - 2 tan 40o
cot200 – tan200 – 2 tan400 using cot x – tan x = 2 cot 2x
2 cot 400 – 2 tan 400
4 cot 80 0
4 tan 100
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