Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Quantitative Aptitude Geometry Co-ordinate Geometry
If 8x + 9y + 3 = 0 and Ax - 8y - 30 = 0 are perpendicular, then find the value of A.
1
9
2
8
3
6
4
More than one of the above
5
None of the above