Given that 2x + 3y - 10 and 3x = 2y - 11, calculate the v...
Given that 2x + 3y - 10 and 3x = 2y - 11, calculate the value of (x - y).
5
3
-3
-5
Correct answer is D
2x + 3y = 10 .......x2
3x - 2y = -11 ........x3
4x + 6y = 20
9x - 6y = -33
¯13x13=−1313, x = 1
from
2x + 3y = 10
2(-1) + 3y = 10
-2 + 3y = 10
3y = 10 + 2
3y3=123, y = 4
x - y = -1 - 4
= -5
If P=x:−2<x<5 and Q=x:−5<x<2 are subsets of \(\mu = {x : -5 ...
In how many ways can 3 prefects be chosen out of 8 prefects? ...
Two forces 10N and 6N act in the directions 060° and 330° respectively. Find the x- componen...
If P(x - 3) + Q(x + 1) = 2x + 3, find the value of (P + Q). ...
Find the derivative of 3x2+1x2...
An exponential sequence (G.P.) is given by 92,34,18,....Find its sum ...
If f(x)=3x3+8x2+6x+k and f(2)=1, find the value of k....
The coefficient of the 5th term in the binomial expansion of (1+kx)8, in ascending powers o...