Suppose cos A = and tan B =

where A is in the second quadrant and B is in the third quadrant. Find the exact values of:

sin(A-B):

tan(A-B):

any help much appreciated.

jv

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- Mar 12th 2009, 07:03 AMjvignacioexact values practice question
Suppose cos A = and tan B =

where A is in the second quadrant and B is in the third quadrant. Find the exact values of:

sin(A-B):

tan(A-B):

any help much appreciated.

jv - Mar 12th 2009, 07:16 AMred_dog

- Mar 14th 2009, 04:24 AMjvignacio
- Mar 14th 2009, 04:47 AMjvignacio