Question
If 27 (x+y)³ − 8(x−y)³ = (x + 5y)
(Ax² + By² + Cxy), then what is the value of (A+B-C)?Solution
27 (x + y)3 – 8 (x – y)3 = (x + 5y (Ax2 + By2 + cxy) Value of (A + B – C) = ? So, put x = 1, y = -1 = 27[1 – 1]3 – 8[1 – (- 1)]3 = [1 + 5 × - 1][A + B – C] + 64 = + 4[ A + B - C = A + B – C = 16
Select the correct combination of mathematical signs that can sequentially replace the sign * and make the equation correct.
5 * 14 * 6 * 8 * 9 * 502
Select the correct combination of mathematical signs that can sequentially replace the “@” sign and balance the following equation.
12@5@7@2@...
Select the number from among the given options that can replace the question mark (?) in the following series.
24, 35, 51, 73, 102, ?
...Select the correct combination of mathematical signs that can sequentially replace the * signs and make the equation correct.
25 * 55 * 30 * 66 * 48 = 48
If ‘÷’ means ‘-’, ‘-’ mean ‘+’, ‘+’ means ‘×’ and ‘×’ means ‘÷’, compute the value of the expression:
135 × ...
If P means ‘multiplied by’, T means ‘subtracted from’, M means ‘added to’ and B means ‘divided by’, then 40 B 8 P 8 T 14 M 9 = ?
...If $ means +, # means - , @ means x and * means ÷, then what is the value of 22 $ 3 @ 10 # 21 * 7 =?
Which two signs should be interchanged to make the given equation correct?
8 – 42 + 15 × 20 ÷ 4 = 346
If ‘<’ means ‘subtract’, ‘>’ means ‘addition’, ‘%’ means ‘multiplication’ and ‘$’ means ‘division’, then 55 > 24 $ 4 < 8...
In the question, assuming the given statements to be true, find which of the conclusion (s) among given two conclusions is /are definitely true and the...
