1.

Solve as directed : 2(3x-1) lt 7x + 1 lt 3 (2x +1) for real values.

Answer»

SOLUTION :2(3x-1) `lt` 7x + 1 `lt` 3 (2x +1)
`6X-2 lt 7x +1 lt 6x + 3`
` -2 lt x+1 lt 3
`rArr -3 lt x lt 2`
If x `in` R the solution set is S = { x:x `in` R and `-3 lt x lt 2`}
{-3,2}


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