141. (1) + (p) + (p2)+…+ (p), N ni hisoblang.
142. ni hisoblang, bu yerda di –a ning barcha bo’luvchilari?
143. Quyidagi sonlar uchun to’g’riligini tekshiring: a) 80; b) 360; c) 375; d) 957; e) 2800.
144. Tenglamalarni yeching: a) (x) = 2; b) (px) = 6 px-2.
145. Tenglamalarni yeching: a) (x) = 14; b) (x) = 8;
c) (x) = 12.
146*. Tenglamani yeching: (2x) = (3x).
147. (5x) = (7x) tenglama butun sonlar to’plamida yechimga ega emasligini isbotlang.
148. Tenglamalarni yeching: a) (x) = (p x);
(p x) = p (x);
c) (p1x) = (p2x) (p1 , p2 – turli tub sonlar).
149*. Tenglamani yeching:
150. (px) = a tenglamani tekshiring.
151. a = 1, 2,…, 100 sonlar uchun (a) funksiyaning jadvalini tuzing.
152. a = 24 uchun formula to’g’riligini tekshiring.
153. a = 18 uchun formula to’g’riligini isbotlang.
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