LAW: COSINE LAW: sinA sinB 'int a's b'+e-2bccos A b'cai+ 2ac cos B ens's. tab cos C . 1 cane 0 x 0 x undefined (infinite) . -x . 0 litradians • 360' 11 EFTA01682650 GEflERRL RESOURCES ALGEBRA EXPANDING a lb + c)= ab ac (a - Dr 2ab + b' (a + b)' al+ lab • b' (a + bl (c +40 aC + ad + be +