Question

use basic identites and slove sin2 u+tan2 u+cos2 u/sec u

Answer 1

\[{\sin^2 u+\tan^2 u+\cos^2 u \over \sec u}\]or \[\sin^2 u+\tan^2 u+{\cos^2 u \over\sec u}\]or something else?

Answer 2

the first one

Answer 3

\[\sin^2(u)+\cos^2(u)=1\] so a start is changing the numerator to
\[1+\tan^2(u)\]

Answer 4

sec u

Answer 5

is it sec u

Answer 6

1+tan x/1+cot x can u plz answer this one

Answer 7

ya i got

Answer 8

what do you have as an answer for the first one?

Answer 9

i got sec u

Answer 10

good, hmm... let me look at the next one

Answer 11

ok, \[{1+\tan x \over1+\cot x}\]right?

Answer 12

ya

Answer 13

multiply top and bottom by tan x, that should do the trick

Answer 14

i did not get u today they said basic identeies so don know any thing about this

Answer 15

well if you want to talk in terms of identities rewrite it as\[{1+{\sin u \over \cos u}\over1+{\cos u \over \sin u}}\]now multiply top and bottom by\[\tan u={\sin u \over \cos u}\]

Answer 16

ok thx