923. y arc sin(sinr:-cos) 解y cosx十sinx 1-(sinr -cosx: sinx + cosx n2r (0<x-kx<;为整数) 924.y= arc cos√1-x 解 (1-x5 sAnn (0<|x<1) 925. y s arc tg 1十x 解y (1+x) 1+ (1 1+x2 (x≠1) 926. y= arc ctg sinx - cosx Sin cOS 解 1+/驵x+ COS 2 cos. (cosr- sinr)(sinr -cosr)-(cosx sinx) (sinz -cosx )2 1(x≠k+4为整数 38
解y sine 2cosx· arc tg(sinx) t sinx sin 2r Atsina 2cosx· arc lg(sinx) 932. y =In arc cos 解 arC COs 2 2x√x-1 arc cos 933.y=ln +rarc t +b2 g 解 +b2 b1+ 62 934 √a2-x2 arc sin 解 2 √a2-x2 √a2-x2 935.y=-ln z+1 arc tg 40
解y 3x+16 2 x3(x≠-1) 936.y= x2+x√2 arc t 2+1 解 2x+√2 y 4√2 +1 2x 2√2 1+( 1) |x|≠1) 937. y =x(are sinx )2+2V1-x2arc sinx-2r N y=(arc sinz )2+ 2rarc sina √1-x2 2xarc sinx +2-2 arc sina》2(|x|<1) 938.y arc cost +1 1+√1-x 41
arc cosa 解 √1 x(0<1x|<1) Inx 939. y= arc tg 解y 1+(x2-1)√x-1x√x2-1 In.x 十 (x2-1)√x2-1 rlnr 940. v-arc sinx +2+i 解y-1+z+a-2) 2 e arc sinx (x|<1) 941.y=12 arc t 解 1|4 2 43 42
1) 1+ 2x2-1 942 C Ctg 解y(21+1F2 12 2 43 √3arc 1+2yx 3x+y, 解y 3x2·(1-yx) 2(1+ +∨x213 +√3 2 1+2 3孙x2 1 944 c tg +√1 解了 1 1+