Hello Aspirant,
Hope you are doing well.
R = {(2,1), (3,1), (4,1), (5,1)}
then R-1 (R inverse) is:-
R-1 = {(1,2), (1,3), (1,4), (1,5)}
I hope you can understand!!
Feel free to ask any query.
All the best for your bright future ahead.
Question : If p : q : r = 2 : 5 : 3 and r : s = 6 : 5, then what is the value of p : q : r : s?
Option 1: 4 : 12 : 7 : 3
Option 2: 4 : 10 : 6 : 5
Option 3: 6 : 5 : 8 : 10
Option 4: 8 : 12 : 7 : 8
Question : If $r\sin\theta=\frac{7}{2}$ and $r\cos\theta=\frac{7\sqrt{3}}{2}$, then the value of $r$ is:
Option 1: 4
Option 2: 3
Option 3: 5
Option 4: 7
Question : If 2P = 3Q and 5Q = 4R, then what is the value of P : Q : R ?
Option 1: 8 : 5 : 4
Option 2: 2 : 3 : 5
Option 3: 6 : 4 : 5
Option 4: 7 : 5 : 6
Question : If $(p-q)=6,(r-q)=5$ and $(r-p)=3$, then find the value of $\frac{p^3+q^3+r^3-3 p q r}{p+q+r}$.
Option 1: 35
Option 2: 45
Option 3: 30
Option 4: 40
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