Question

Solve the problem: A 2800-lb car travelling uphill has a grade resistance of 180 pounds. Use a tangent function to estimate the angle of the grade. Give your answer to the nearest tenth of a degree. -6.2° 7.4° -7.4° 3.7° QUESTION 20 Write the trigonometric expression as an algebraic expression in u. cOs (sin u +1 Fill in the blank the correct equilvalent expression. 1 (5-t) cos t ( cos t sec sin t 플- t) cos Dcos t SO sin플. t)

Answer 1

Cos (sinu) Sine U U2- CS O CosO Cos (-U2-) Cos (sinu) Cos [cos (I-) Cost sec- Since sec ( Qnd Nouw CofuncHon jidontítg). Reciprocal dnti Csec CoSec Stnt 9hesHou CstSec/ I _}) Nouo Cosec Cest Cosd sint Final ansuwe y