1. Calculați: (a) 9³-34 (b) 2012¹ + 12012 (c) 25⁰.025 (d) 20 +0³+14+4¹ +5² (e) 92 2003 - 81² (f) 520.5-521 (g) 640: 638 (h) (68)7: 654 (i) 427-4:428 (j) 23.32+250 112-40 (k) (2+4+6+...+100)-50² (1) (15¹5-10¹0)0 (m) 710.75.73 (78)² (n) 317.717 - 2117 (0) 915.314 (p) 25¹0.523.1255 (q) 365.65 (r) 817: 164-232 (s) 497.749 (t) (520 510-418 416): 32 : (u) 312:31 +(3-5) : 15 – 2011.12011 (v) 413: 86 +73-52- [625:54+16: (7-3²-55)] (w) (254)³ (42+32)11-(02010+12012 +20130)2 (x) [11+3¹5.35+ (54)³] : [11+ (3¹0)2 +548 : 536] (y) (32-34): 96-814: 275:3¹:3⁰ (2) (7+14+21+...+105): (1+2+3+...+15)-20-7⁰ :ajutor va rog ​