а)
-1/4 + (-1/4)² + (-1/4)³ = -1/4 + 1/16 - 1/64 = -16/64 + 4/64 - 1/64 = -13/64,
-1/3 - (-1/3)² - (-1/3)³ = -1/3 - 1/9 + 1/27 = -9/27 - 3/27 + 1/27 = -11/27,
⇒⇒⇒⇒ -13/64 больше -11/27;
а)
-1/4 + (-1/4)² + (-1/4)³ = -1/4 + 1/16 - 1/64 = -16/64 + 4/64 - 1/64 = -13/64,
-1/3 - (-1/3)² - (-1/3)³ = -1/3 - 1/9 + 1/27 = -9/27 - 3/27 + 1/27 = -11/27,
⇒⇒⇒⇒ -13/64 больше -11/27;
б)(-1/2)^5 - (-1/2)³ - 1/2 = -1/32 - 1/8 - 1/2 = -1/32 - 4/32 - 16/32 = -21/32.(-1/5)³ - (-1/5)² - 1/5 = -1/125 - 1/25 - 1/5 = -1/125 - 5/125 - 25/125 = -32/125.⇒⇒⇒⇒ -21/32 меньше -32/125