1) Which of the following is the value of (x+ 1/x)^2? a) x^2 + 1/x^2 b) x^2 - 1/x^2 c) x2+ 1/x2 + 2x d) x^2 + 1/x^2 + 2 2) a^2-b^2 is a product of   a) (a+b)(a-b) b) (a+b)(a+b) c) (a-b)(a-b) d) None of these 3)  Multply (a+b) and (a+b)  a) a+b+ab b) a+b(a^2+b^2)  c) a^4+b^4 +2ab d) a^2+b^2 +2ab 4)  Whichis not a Standard Indentity a) (a + b)^2 = a^2 + 2ab + b^2 b) (a – b)^2 = a^2 – 2ab + b^2 c) (a + b) (a – b) = a^2 – b^2 d) (x + a) (x + b) = x^2 + (a + b) x + ab 5) Multiply 2a+x and 2a-x a) 2a2+x b) 4a^2+x^2 c) 4a^2-x^2 d) (4a) ^2 -x 6) (4p – 3q)^2  a) 16p^2 – 24pq + 9q^2   b) 16p2 – 24p 2+ 9q2 c) 16p^2 – 24pq^2 + 9q^2   d) 16p3– 24pq + 9q^2   7) Find (48) ^2 a) 2304 b) 2045 c) 2300 d) 2011 8) Find (156) ^2 a) 2305 b) 22223 c) 2907 d) 24336 9) Find(99) ^2 a) 9801 b) 981 c) 9800 d) 9990 10) Find(97) ^2 a) 9400 b) 9409 c) 949 d) 9800

Maths

от
Печат
За вграждане

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?