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Multiple Choices ( Algebra )
Al-Khwarizmi
Al-Khwarizmi
See lessCan you solve in 60 secs? If x (x – 3) = 1 then the of x3 value of x3 – 18 ) will be?
Given, the question is wrong as it should be x (x – 3) = -1 Find X^3(x^3-18) Solution: x (x – 3) = -1 taking cube on both sides , ×^3(X-3)^3= (-1)^3 ×^3(x^3-27-9x^2+27x)= -1 from question, x^2-3x=-1 x^2= -1+3x keeping the value of x^2 x^3(x^3-27-9(-1+3x) +27x =- 1 x^3(x^3-27+9) =-1(-27 and +27 getRead more
Given,
the question is wrong as it should be x (x – 3) = -1
Find X^3(x^3-18)
Solution:
x (x – 3) = -1
taking cube on both sides ,
×^3(X-3)^3= (-1)^3
×^3(x^3-27-9x^2+27x)= -1
from question, x^2-3x=-1
x^2= -1+3x keeping the value of x^2
x^3(x^3-27-9(-1+3x) +27x =- 1
x^3(x^3-27+9) =-1(-27 and +27 gets cancelled)
therefore,X^3(x^3-18) = -1
Hence answer is -1
Find
See lessHerald’s birth month is April. What is the probability that someone will guess his birthday on first try if the date is two even digits?
in month of april two even digit dates are 22 24 26 28 that is 4 /30 therefore probability = 2/15
in month of april two even digit dates are 22 24 26 28 that is 4 /30
therefore probability = 2/15
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