1.

The simultaneous equatoins 2x + 3y = 5, 4x + 6y = 10 have : (a) no solution (b) only one solution (c) only two solutions (d) several solutions

Answer»

(d) several solutions

Check for \(\frac{a_1}{a_2}\)\(\ne\)\(\frac{b_1}{b_2}\)\(\frac{a_1}{a_2}\)\(\frac{b_1}{b_2}\)\(\ne\)\(\frac{c_1}{c_2}\)

and \(\frac{a_1}{a_2}\)\(\frac{b_1}{b_2}\)=\(\frac{c_1}{c_2}\)

Here a1 =2, b1 =3,c1= -5

a2 = 4, b2 = 6, c2 = –10.



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