17. The reduction formula 1 cos" x dx = cos"-1 x sin x + n is useful. Scos cos x dx = 18. The reduction formula n-1 n-2 COST x dx n S 1 n-1 cos" x dx = -cos" n-1 x sin x + n n and the answer to problem #17 are useful. | cose cosб x dx :S Cosn-2 x dx Page 9 of 14

Solve 4tan2x+5tanx6=0.

If a coffee filter is dropped, its velocity after t seconds is given by v(t)=4(10.0003t) feet per second. What is the terminal velocity, and how long does it take the filter to reach 99 of terminal velocity? Use a table increment of 0.1 and given your answer to the nearest tenth of a second.

Step 2 Making this substitution using J gives us 10 sin²(x) cos³(x) dx 10 10 sin²(x) (1 - sin²(x)) cos(x) dx = = [ 10 sin²(x) cos(x) -/(10 sin²(x) dx - ) dx.