Solve this


Let $R=\{(a, b): a, b \in Z$ and $b=2 a-4\}$. If $(a,-2\} \in R$ and $\left(4, b^{2}\right) \in R$. Then, write the values of a and b.




$b=2 a-4$


Put $b=-2, a=1$

Put $a=4, b=4$

a = 1 , b = 4


Leave a comment


Click here to get exam-ready with eSaral

For making your preparation journey smoother of JEE, NEET and Class 8 to 10, grab our app now.

Download Now