please help with these:

1. What formula would be used to calculate a local linear approximation for f (3:) = % arounda: = 1? 2. Using the line tangent to the curve f (m) = sin(a:) at a: = %, What is the local linear approximation for sin(1)? 3.14 Notice that, since % m T is close to 1, we should be able to get a good linear approximation for sin(1). O sin(1) m Hz 3. Using the line tangent to the curve f (9:) = $2 2 at as = 1, What is the local linear approximation for f (1.3)? 4. What is the formula for the line tangent to the curve f (m) = cos(a:) at :r = 71'? Oy::n+?r