find the exact value of the expression.costan−1247
1 - 12, find The exacf value of each expression wifhouT a calculator. 1. sin'IO 2. cos'11 3_ sin-1“) 4_ COS-1“) a. O 0 —'70°' 'f'f . _ 47/1, ll. 5. ian'lo 6. Tan“1(-1) 7
