iv) For what value r, the two equations rx-3y-1 =0 and (4-r)x - y + 1
= 0 would have no solution.
不 px
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दोनो समीकरणों को जोड़ने पर
rx+(4-r)x-3y-y-1+1=0
x कॉमन लेने पर
x(r+4-r)-4y+0=0
4x-4y=0
x-y=0
x=y
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