xdy/dx+y=6x
gx=1/1-2x fg(-1.5) = 4-3x
the pair of equations 2xk+54=7 and 6x-y=11 has unique soltion then k
1921681001
cos(x^2)=xe^y
64m^3-n^3
5x = 20
x^6y^3-125
(a+b)
28
150
112
10
88
289
116
80
55
160
181
75
700
550
178
86
70
60
121
78
23
40
95
85
...
