Question

If tan  = 1 then complete the following activity to find cos ​

Answer 1

Answer:

{1}sec²q

{2}sec45=√2. cos45=1/√2

Step-by-step explanation:

1: 1+tan²q=sec²q [sce²q-tan²q=1]

2: sec45=√2

cos45=1/√2