Help me on this for a taco and brainliest

What basic trigonometric identity would you use to verify that sin x cos x tan x =1-cos^(2)x?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year