Pls help...

0. Its because the cos of 90 is 5 and tan of 48 is 3. So, therefore, you should be able to finish this problem without any trouble.

                                                                                          - Guest Anonymouse

[sin 150 - cos 120 + tan 210] /  [ sin 330 - cos 300 + tan 225]

[1/2 - (-1/2) + sqrt(3)/3 ] / [ -1/2 - 1/2 + sqrt(2)/2]  =

[ 1 + sqrt(3) / 3 ] / [ -1 + sqrt(2) /2 ] =

(2/3) [ 3 + sqrt(3) ]  /  [ -2 + sqrt(2)]    multiply top/bottom [ -2 - sqrt(2)]

(2/3) [ 3 + sqrt(3)] [-2 - sqrt(2) ] / 2  =

(1/3) [ -6 -2sqrt(3) -3sqrt(2) - sqrt(6) ] = about -5.3854