2. Simplify the following: a) (sinx + cos x)(secx+ cscx) sin cos x b) cosx sinx 4 tanx secx+2secx c) 6 tanx secx+2secx sin x-cos x d) sin x-cos x 1 2 e) sinx - cosx cosx - sinx secx sinx f) sinx cos x 1 cosxsinx 5 that u and v are between g) tanx 1+ cosx 3 4 sin(u)- sin(v)- 3. Assuming that 5 and and evaluate each of the following exactly a) cos (u+v) c) tan (u-v) b) sin (u-v) d) cos(u-v) an